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1. The director (talk) ___________  on the telephone at the moment.2. This is the first time my father (drive) ___________  in that car.3. Up to the present, Minh (read) ___________.all the books written by Charles Dickens.4. My sister (be) ___________ .a teacher. She (teach) ___________Mathematics. She (teach) ___________ at class 7A at present.5. Nam’s brother (write) ___________ four novels so far.6. It (be) ___________ very hot in the summer.7. I (not, understand) ___________what the...
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1. The director (talk) ___________  on the telephone at the moment.

2. This is the first time my father (drive) ___________  in that car.

3. Up to the present, Minh (read) ___________.all the books written by Charles Dickens.

4. My sister (be) ___________ .a teacher. She (teach) ___________Mathematics. She (teach) ___________ at class 7A at present.

5. Nam’s brother (write) ___________ four novels so far.

6. It (be) ___________ very hot in the summer.

7. I (not, understand) ___________what the teacher is saying.

8. My family (visit) ___________.this museum several times.

9. I (love) ___________. you so much. Please (not, leave) ___________me.

10. You (be) ___________the only one that James (love) ___________

11. They (not, know) ___________  how to answer this question.

12. Margaret (play) ___________football since she (be) ___________.a little girl

13. (Not, make) ___________ noise! The babies (sleep) ___________ at the moment.

14. You (play) ___________video games for 5 hours. You must go to sleep right now!

15. She (think) ___________ she (be) ___________a good friend.

16.  (Do) ___________ your homework yet?

17. She (already, finish) ___________ her housework.

18. David frequently (miss) ___________the only bus to school, so he (be) ___________. sometimes late for class.

19.  Maria seldom (listen) ___________to her parents’ advice.

20.  Donald (visit) ___________ his parents tomorrow.

21.   Water (boil) ___________.at a very high temperature.

22. I (not, like) ___________  basketball, but I(play) ___________ .it now.

23. I (not, like) ___________  basketball, but I(play) ___________ .it now.

3
10 tháng 7 2021

1 is talking

2 has driven

3 has read

4 is - teaches - is teaching

5 has written

6 is

7 don't understand

8 has visited

9 live - don't leave

10 are - loves

11 don't know

12 has played - was

13 Don't make - are sleeping

14 have been playing 

15 thinks - is

16 Have you done

17 has already finished

18 misses - is

19 listens

20 will visit

21 boils

22 don't like - am playing

10 tháng 7 2021

1. The director (talk) _____is talking_____  on the telephone at the moment.

2. This is the first time my father (drive) ________has driven___  in that car.

3. Up to the present, Minh (read) ______ has read_____.all the books written by Charles Dickens.

4. My sister (be) _____is______ .a teacher. She (teach) _____teaches______Mathematics. She (teach) _________is teaching__ at class 7A at present.

5. Nam’s brother (write) _______has written____ four novels so far.

6. It (be) ______is_____ very hot in the summer.

7. I (not, understand) ______don't understand_____what the teacher is saying.

8. My family (visit) ____has visited_______.this museum several times.

9. I (love) _______love____. you so much. Please (not, leave) _______don't leave____me.

10. You (be) ______is_____the only one that James (love) _______loves____

11. They (not, know) _____don't know______  how to answer this question.

12. Margaret (play) ____has played_______football since she (be) ______was_____.a little girl

13. (Not, make) ______don't make_____ noise! The babies (sleep) _____are sleeping______ at the moment.

14. You (play) ______have played_____video games for 5 hours. You must go to sleep right now!

15. She (think) ____thinks_______ she (be) __is_________a good friend.

16.  (Do) _______have ____ your homework been done yet?

17. She (already, finish) ______has already finished_____ her housework.

18. David frequently (miss) _____misses______the only bus to school, so he (be) ____is_______. sometimes late for class.

19.  Maria seldom (listen) ______listens____to her parents’ advice.

20.  Donald (visit) ___will visit________ his parents tomorrow.

21.   Water (boil) ___boils________.at a very high temperature.

22. I (not, like) ______don't like _____  basketball, but I(play) ______am playing_____ .it now.

 

23. I (not, like) ______don't like_____  basketball, but I(play) ______am playing_____ .it now.

 

Use a relative adverb to combine each pair of sentences below. The first one has been done for you. 1. This is the house. We often stay in this house in summer. → e.g. This is the house where/in which we often stay in summer. 2. I’ll show you the second-hand bookshop. You can find valuable books in this shop. 3. I have not decided the day. I’ll go to London on that day. 4. He was born on the day. His father was away on that day. 5. The book is a telephone directory. We can look up...
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Use a relative adverb to combine each pair of sentences below. The first one has been done for you.

1. This is the house. We often stay in this house in summer. → e.g. This is the house where/in which we often stay in summer.

2. I’ll show you the second-hand bookshop. You can find valuable books in this shop.

3. I have not decided the day. I’ll go to London on that day.

4. He was born on the day. His father was away on that day.

5. The book is a telephone directory. We can look up telephone numbers in this book.

6. Mrs. Brown rang Dr. Brown. He was going to carry out an urgent operation at that
moment.

7. The airport is the most modern one. We’re going to arrive at this airport.

8. She doesn’t want to speak of the cause. She divorced her husband because of this cause.

9. The days were the saddest ones. I lived far from home on those days.

10. I never forget the park. We met each other for the first time at this park.

34
24 tháng 3 2021

2. I’ll show you the second-hand bookshop where you can find valuable books.

3. I have not decided the day when I’ll go to London.

4. He was born on the day when his father was away.

5. The book in which we can look up telephone numbers is a telephone directory.

6. Mrs. Brown rang Dr. Brown when he was going to carry out an urgent operation.

7. The airport where we’re going to arrive is the most modern one.

8. She doesn’t want to speak of the cause why she divorced her husband.

9. The days when I lived far from home were the saddest ones.

10. I never forget the park where we met each other for the first time.

1, This is the house where/in which we often stay in summer.

2, I'll show you the second -hand bookshop where you can find valuable books .

3, I have not decided the day when i'll go to London

4, he was born on the day when his father was away

5, the book in which we can look up telephone numbers is a telephone directory

6, Mrs.Brown rang Dr.Brown when he was going to carry out an urgent operation

7, the airport where we're  going to arrive is the most modern one

8, she doesn't want to speak of the cause whe she divorced her husband 

9, the days when i lived far from home were the saddest ones

10, I never forget the park where we met each other for the first time 

8 tháng 9 2019

II. Put the verbs in the brackets: simple presnt and present continous

1. I (live)....LIVE.... with my parents but right now I (stay)....AM STAYING...with some friends for a few days

2. I can't talk on the phone now. I (drive)....AM DRIVING... home

3. Where are the children? They (lie)...ARE LYING....on the beach over there

4. He (not understand)....DOESN'T UNDERSTAND....what you (talk)....ARE TALKING...about. He is foreign

5. How much DOES your suitcase (weight)...WEIGH...?It (look)..LOOKS.really heavy

6. Normanly I (start)......START.work at eight o'clock but I (start).....AM STARTING....at 7 this week. We are busy just now

7. What is the smell? Something (burn)....IS BURNING....in the kitchen

8. I (work)....AM WORKING....overtime this month because I (save up)...AM SAVING UP.....to buy a car

9. He (smoke)....SMOKES....thirty cigarettes a day at the moment he (try)....IS TRYING.....very hard to cut down

10. We usually (read)....READ...books,(listen)....LISTEN...to music or (watch)......WATCH..TV

Use a Relative Adverb to combine each pair of the sentences below. 1. This is the house. We often stay in this house in the summer. 2. That was the time. He managed the enterprise at that time. 3. I'll show you the second-hand bookshop. You can find valuable books in this shop. 4. I never forget the park. We met each other for the first time at this park. 5. The police want to know the hotel. Mr Bush stayed at this hotel two weeks ago. 6. The reasons are basic grammatical ones? I'm...
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Use a Relative Adverb to combine each pair of the sentences below.

1. This is the house. We often stay in this house in the summer.

2. That was the time. He managed the enterprise at that time.

3. I'll show you the second-hand bookshop. You can find valuable books in this shop.

4. I never forget the park. We met each other for the first time at this park.

5. The police want to know the hotel. Mr Bush stayed at this hotel two weeks ago.

6. The reasons are basic grammatical ones? I'm scolded by the teacher for these reasons.

7. She doesn't want to speak to the cause. She divorced her husband for this cause.

8. The road is shaded with trees. I go to school on this road every day.

9. I have not decided the day. I'll go to London on that day.

10. He doesn't want to sell the house. He was born in this house.

11. The airport is the most modern one. We are going to arrive at this airport.

12. He was born on the day. His father was away on that day.

13. The days were the saddest ones. I lived far from home on those days.

14. I do not know the reason. Sh left school for it.

15. The bed has no mattress. I sleep on this bed.

16. Our school has a good laboratory. The students practise chemistry in the laboratory.

17. You didn't tell us the reason. We had to cut down our daily expenses for that reason.

18. The book is a telephone directory. We can look up telephone numbers in this book.

19. Mrs Brown rang Dr Brown. He was going to carry out an urgent operation at that moment.

20. This is the house. We have lived there for 5 years.

1
2 tháng 8 2019

Use a Relative Adverb to combine each pair of the sentences below.

1. This is the house. We often stay in this house in the summer.

=> This is the house where we often stay in the summer.

2. That was the time. He managed the enterprise at that time.

=> That was the time when he managed the enterprise.

3. I'll show you the second-hand bookshop. You can find valuable books in this shop.

=> I'll show you the second-hand bookshop where you can find valuable books.

4. I never forget the park. We met each other for the first time at this park.

=> I never forget the park where we met each other for the first time.

5. The police want to know the hotel. Mr Bush stayed at this hotel two weeks ago.

=> The police want to know the hotel where Mr Bush stayed two weeks ago.

6. The reasons are basic grammatical ones? I'm scolded by the teacher for these reasons.

=> The reasons why I'm scolded by the teacher are basic grammatical ones?

7. She doesn't want to speak to the cause. She divorced her husband for this cause.

=> She doesn't want to speak to the cause why she divorced her husband.

8. The road is shaded with trees. I go to school on this road every day.

=> The road where I go to school on this road every day is shaded with trees.

9. I have not decided the day. I'll go to London on that day.

=> I have not decided the day when I'll go to London.

10. He doesn't want to sell the house. He was born in this house.

=> He doesn't want to sell the house where he was born.

11. The airport is the most modern one. We are going to arrive at this airport.

=> The airport where w e are going to arrive is the most modern one.

12. He was born on the day. His father was away on that day.

=> He was born on the day when his father was away.

13. The days were the saddest ones. I lived far from home on those days.

=> The days when I lived far from home were the saddest ones.

14. I do not know the reason. She left school for it.

=> I do not know the reason why she left school.

15. The bed has no mattress. I sleep on this bed.

=> The bed where I sleep has no mattress.

16. Our school has a good laboratory. The students practise chemistry in the laboratory.

=> Our school has a good laboratory where the students practise chemistry.

17. You didn't tell us the reason. We had to cut down our daily expenses for that reason.

=> You didn't tell us the reason why we had to cut down our daily expenses.

18. The book is a telephone directory. We can look up telephone numbers in this book.

=> The book where we can look up telephone numbers is a telephone directory.

19. Mrs Brown rang Dr Brown. He was going to carry out an urgent operation at that moment.

=> Mrs Brown rang Dr Brown when he was going to carry out an urgent operation.

20. This is the house. We have lived there for 5 years.

=> This is the house where we have lived for 5 years.

Choose the letter A, B, C or D to complete the passage belowThere is a lot of controversy surrounding the invention __________ (6) the telephone. There have been court cases, books, and articles generated about the subject. Of course, Alexander Graham Bell is the father of the telephone. After all it was his design that was first __________ (7), however, he was not the first inventor to come up __________ (8) the idea of a telephone.Antonio Meucci, an Italian immigrant, began developing the...
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Choose the letter A, B, C or D to complete the passage below

There is a lot of controversy surrounding the invention __________ (6) the telephone. There have been court cases, books, and articles generated about the subject. Of course, Alexander Graham Bell is the father of the telephone. After all it was his design that was first __________ (7), however, he was not the first inventor to come up __________ (8) the idea of a telephone.

Antonio Meucci, an Italian immigrant, began developing the design of a talking telegraph or telephone __________ (9) 1849. In 1871, he filed a caveat (an announcement of an invention) for his design of a talking telegraph. Due to hardships, Meucci could not renew his caveat. His role in the invention of the telephone was overlooked until the United States House of Representatives __________ (10) a Resolution on June 11, 2002, honoring Meucci's contributions and work. You can read the resolution (107th Congress, H Res 269) on Congress.gov.

To make matters even more interesting some researchers suggest that Elisha Gray, a professor at Oberlin College, applied for a caveat of the telephone on __________ (11) same day Bell applied for his patent of the telephone- these gentlemen didn’t actually visit the Patent Office, their lawyers did __________ (12) their behalf. In Historical First Patents: The First United States Patent for Many Everyday Things (Scarecrow Press, 1994), Travis Brown, reports that Bell’s lawyer got to the patent office first. The date was February 14, 1876. He was the fifth entry of that day, __________ (13) Gray’s lawyer was 39th. Therefore, the U.S. Patent Office ___________ (14) Bell with the first patent for a telephone, US Patent Number 174,465 rather than honor Gray's caveat. _________, (15) some authors dispute this story and suggest that there was malfeasance by certain individuals at Patent Office, and possibly Bell himself.

Question 14:

A. provided

B. supported

Cobjected

Dawarded

1
5 tháng 10 2017

Đáp án: D

Giải thích: award sb with st: tặng ai giải thưởng gì

Dịch: Vì thế, cục sở hữu trí tuệ Mỹ phong tặng Bell là người đầu tiên có bằng sáng chế điện thoại, số 174765, hơn là tôn vinh bản thảo của Gray.

Choose the letter A, B, C or D to complete the passage belowThere is a lot of controversy surrounding the invention __________ (6) the telephone. There have been court cases, books, and articles generated about the subject. Of course, Alexander Graham Bell is the father of the telephone. After all it was his design that was first __________ (7), however, he was not the first inventor to come up __________ (8) the idea of a telephone.Antonio Meucci, an Italian immigrant, began developing the...
Đọc tiếp

Choose the letter A, B, C or D to complete the passage below

There is a lot of controversy surrounding the invention __________ (6) the telephone. There have been court cases, books, and articles generated about the subject. Of course, Alexander Graham Bell is the father of the telephone. After all it was his design that was first __________ (7), however, he was not the first inventor to come up __________ (8) the idea of a telephone.

Antonio Meucci, an Italian immigrant, began developing the design of a talking telegraph or telephone __________ (9) 1849. In 1871, he filed a caveat (an announcement of an invention) for his design of a talking telegraph. Due to hardships, Meucci could not renew his caveat. His role in the invention of the telephone was overlooked until the United States House of Representatives __________ (10) a Resolution on June 11, 2002, honoring Meucci's contributions and work. You can read the resolution (107th Congress, H Res 269) on Congress.gov.

To make matters even more interesting some researchers suggest that Elisha Gray, a professor at Oberlin College, applied for a caveat of the telephone on __________ (11) same day Bell applied for his patent of the telephone- these gentlemen didn’t actually visit the Patent Office, their lawyers did __________ (12) their behalf. In Historical First Patents: The First United States Patent for Many Everyday Things (Scarecrow Press, 1994), Travis Brown, reports that Bell’s lawyer got to the patent office first. The date was February 14, 1876. He was the fifth entry of that day, __________ (13) Gray’s lawyer was 39th. Therefore, the U.S. Patent Office ___________ (14) Bell with the first patent for a telephone, US Patent Number 174,465 rather than honor Gray's caveat. _________, (15) some authors dispute this story and suggest that there was malfeasance by certain individuals at Patent Office, and possibly Bell himself.

Question 12:

Aat

B. on

C. for

D. with

1
20 tháng 9 2019

Đáp án: B

Giải thích: cụm từ on one’s behalf: thay mặt ai

Dịch: Những người này thực tế không đến cục sở hữu trí tuệ, luật sư của họ làm điều này thay họ.

Choose the letter A, B, C or D to complete the passage belowThere is a lot of controversy surrounding the invention __________ (6) the telephone. There have been court cases, books, and articles generated about the subject. Of course, Alexander Graham Bell is the father of the telephone. After all it was his design that was first __________ (7), however, he was not the first inventor to come up __________ (8) the idea of a telephone.Antonio Meucci, an Italian immigrant, began developing the...
Đọc tiếp

Choose the letter A, B, C or D to complete the passage below

There is a lot of controversy surrounding the invention __________ (6) the telephone. There have been court cases, books, and articles generated about the subject. Of course, Alexander Graham Bell is the father of the telephone. After all it was his design that was first __________ (7), however, he was not the first inventor to come up __________ (8) the idea of a telephone.

Antonio Meucci, an Italian immigrant, began developing the design of a talking telegraph or telephone __________ (9) 1849. In 1871, he filed a caveat (an announcement of an invention) for his design of a talking telegraph. Due to hardships, Meucci could not renew his caveat. His role in the invention of the telephone was overlooked until the United States House of Representatives __________ (10) a Resolution on June 11, 2002, honoring Meucci's contributions and work. You can read the resolution (107th Congress, H Res 269) on Congress.gov.

To make matters even more interesting some researchers suggest that Elisha Gray, a professor at Oberlin College, applied for a caveat of the telephone on __________ (11) same day Bell applied for his patent of the telephone- these gentlemen didn’t actually visit the Patent Office, their lawyers did __________ (12) their behalf. In Historical First Patents: The First United States Patent for Many Everyday Things (Scarecrow Press, 1994), Travis Brown, reports that Bell’s lawyer got to the patent office first. The date was February 14, 1876. He was the fifth entry of that day, __________ (13) Gray’s lawyer was 39th. Therefore, the U.S. Patent Office ___________ (14) Bell with the first patent for a telephone, US Patent Number 174,465 rather than honor Gray's caveat. _________, (15) some authors dispute this story and suggest that there was malfeasance by certain individuals at Patent Office, and possibly Bell himself.

Question 6:

A. of

B. to

C. with

D. for

1
28 tháng 3 2017

Đáp án A

Giải thích: the N of N

Dịch: Có rất nhiều tranh cãi xung quanh sự phát minh điện thoại.

Choose the letter A, B, C or D to complete the passage belowThere is a lot of controversy surrounding the invention __________ (6) the telephone. There have been court cases, books, and articles generated about the subject. Of course, Alexander Graham Bell is the father of the telephone. After all it was his design that was first __________ (7), however, he was not the first inventor to come up __________ (8) the idea of a telephone.Antonio Meucci, an Italian immigrant, began developing the...
Đọc tiếp

Choose the letter A, B, C or D to complete the passage below

There is a lot of controversy surrounding the invention __________ (6) the telephone. There have been court cases, books, and articles generated about the subject. Of course, Alexander Graham Bell is the father of the telephone. After all it was his design that was first __________ (7), however, he was not the first inventor to come up __________ (8) the idea of a telephone.

Antonio Meucci, an Italian immigrant, began developing the design of a talking telegraph or telephone __________ (9) 1849. In 1871, he filed a caveat (an announcement of an invention) for his design of a talking telegraph. Due to hardships, Meucci could not renew his caveat. His role in the invention of the telephone was overlooked until the United States House of Representatives __________ (10) a Resolution on June 11, 2002, honoring Meucci's contributions and work. You can read the resolution (107th Congress, H Res 269) on Congress.gov.

To make matters even more interesting some researchers suggest that Elisha Gray, a professor at Oberlin College, applied for a caveat of the telephone on __________ (11) same day Bell applied for his patent of the telephone- these gentlemen didn’t actually visit the Patent Office, their lawyers did __________ (12) their behalf. In Historical First Patents: The First United States Patent for Many Everyday Things (Scarecrow Press, 1994), Travis Brown, reports that Bell’s lawyer got to the patent office first. The date was February 14, 1876. He was the fifth entry of that day, __________ (13) Gray’s lawyer was 39th. Therefore, the U.S. Patent Office ___________ (14) Bell with the first patent for a telephone, US Patent Number 174,465 rather than honor Gray's caveat. _________, (15) some authors dispute this story and suggest that there was malfeasance by certain individuals at Patent Office, and possibly Bell himself.

Question 10:

A. pass

B. passed

C. passing

D. to pass

1
10 tháng 9 2017

Đáp án: B

Giải thích: câu chuyện đang được kể lại nên tất cả chi tiết sẽ chia quá khứ

Dịch: Vai trò của ông trong sự phát minh điện thoại được nhìn lại cho đến khi Hạ viện Mỹ thông qua một nghị quyết vào ngày 11 tháng 6 năm 2002, vinh danh cống hiến và việc làm của Meucci.

Choose the letter A, B, C or D to complete the passage belowThere is a lot of controversy surrounding the invention __________ (6) the telephone. There have been court cases, books, and articles generated about the subject. Of course, Alexander Graham Bell is the father of the telephone. After all it was his design that was first __________ (7), however, he was not the first inventor to come up __________ (8) the idea of a telephone.Antonio Meucci, an Italian immigrant, began developing the...
Đọc tiếp

Choose the letter A, B, C or D to complete the passage below

There is a lot of controversy surrounding the invention __________ (6) the telephone. There have been court cases, books, and articles generated about the subject. Of course, Alexander Graham Bell is the father of the telephone. After all it was his design that was first __________ (7), however, he was not the first inventor to come up __________ (8) the idea of a telephone.

Antonio Meucci, an Italian immigrant, began developing the design of a talking telegraph or telephone __________ (9) 1849. In 1871, he filed a caveat (an announcement of an invention) for his design of a talking telegraph. Due to hardships, Meucci could not renew his caveat. His role in the invention of the telephone was overlooked until the United States House of Representatives __________ (10) a Resolution on June 11, 2002, honoring Meucci's contributions and work. You can read the resolution (107th Congress, H Res 269) on Congress.gov.

To make matters even more interesting some researchers suggest that Elisha Gray, a professor at Oberlin College, applied for a caveat of the telephone on __________ (11) same day Bell applied for his patent of the telephone- these gentlemen didn’t actually visit the Patent Office, their lawyers did __________ (12) their behalf. In Historical First Patents: The First United States Patent for Many Everyday Things (Scarecrow Press, 1994), Travis Brown, reports that Bell’s lawyer got to the patent office first. The date was February 14, 1876. He was the fifth entry of that day, __________ (13) Gray’s lawyer was 39th. Therefore, the U.S. Patent Office ___________ (14) Bell with the first patent for a telephone, US Patent Number 174,465 rather than honor Gray's caveat. _________, (15) some authors dispute this story and suggest that there was malfeasance by certain individuals at Patent Office, and possibly Bell himself.

Question 6:

A. of

B. to

C. with

D. for

1
25 tháng 3 2019

Đáp án: A

Giải thích: the N of N

Dịch: Có rất nhiều tranh cãi xung quanh sự phát minh điện thoại.

Choose the letter A, B, C or D to complete the passage belowThere is a lot of controversy surrounding the invention __________ (6) the telephone. There have been court cases, books, and articles generated about the subject. Of course, Alexander Graham Bell is the father of the telephone. After all it was his design that was first __________ (7), however, he was not the first inventor to come up __________ (8) the idea of a telephone.Antonio Meucci, an Italian immigrant, began developing the...
Đọc tiếp

Choose the letter A, B, C or D to complete the passage below

There is a lot of controversy surrounding the invention __________ (6) the telephone. There have been court cases, books, and articles generated about the subject. Of course, Alexander Graham Bell is the father of the telephone. After all it was his design that was first __________ (7), however, he was not the first inventor to come up __________ (8) the idea of a telephone.

Antonio Meucci, an Italian immigrant, began developing the design of a talking telegraph or telephone __________ (9) 1849. In 1871, he filed a caveat (an announcement of an invention) for his design of a talking telegraph. Due to hardships, Meucci could not renew his caveat. His role in the invention of the telephone was overlooked until the United States House of Representatives __________ (10) a Resolution on June 11, 2002, honoring Meucci's contributions and work. You can read the resolution (107th Congress, H Res 269) on Congress.gov.

To make matters even more interesting some researchers suggest that Elisha Gray, a professor at Oberlin College, applied for a caveat of the telephone on __________ (11) same day Bell applied for his patent of the telephone- these gentlemen didn’t actually visit the Patent Office, their lawyers did __________ (12) their behalf. In Historical First Patents: The First United States Patent for Many Everyday Things (Scarecrow Press, 1994), Travis Brown, reports that Bell’s lawyer got to the patent office first. The date was February 14, 1876. He was the fifth entry of that day, __________ (13) Gray’s lawyer was 39th. Therefore, the U.S. Patent Office ___________ (14) Bell with the first patent for a telephone, US Patent Number 174,465 rather than honor Gray's caveat. _________, (15) some authors dispute this story and suggest that there was malfeasance by certain individuals at Patent Office, and possibly Bell himself.

Question 9:

Aon

Bat

C. in

D. of

1
11 tháng 9 2019

Đáp án: C

Giải thích: in + năm: vào năm…

Dịch: Antonio Meucci, một người nhập cư người Italia bắt đầu ý tưởng phát minh điện thoại vào năm 1849.