The average of 100 number is 42, so the sum of 100 number is : 42 x 100 = 4200

The average of first 50 number is 41, so the sum of first 50 number is : 41 x 50 = 2050

So the sum of the last 50 number is: 4200 - 2050 = 2150

Then the average of the last 50 number is : 2150 : 50 = 43

This travel guide is for people who want to visit Ha Long Bay, one of the seven natural wonders in the world. Ha Long Bay is located in Quang Ninh province which is in the north of Vietnam. It is nearly 200km from Hanoi. So it takes you about 4 hours by car. You can also travel there in a coach or even in a helicopter on Saturday. The best season to visit Ha Long is in summer when the weather is warm and sunny. Ha Long Bay has many beautiful caves and islands; therefore, you must take a boat trip to enjoy the view here. You certainly must take pictures to remember the trip better, too. If you are an active person, you must do the water sports here swimming, sailing, and windsurfing. One more thing, you must try the seafood here because it is incredibly fresh and delicious. With this travel guide, I hope that you will have a wonderful time here in the number one natural wonder of Vietnam.

My name is Nhật Kiếm

My name is Mai

1. Unless we protect the environment , we will destroy ourselves

\(\Rightarrow\) If we don't protect the environment, we will destroy ourselves.

2. Unless she is more hard-working , she will get low marks

\(\Rightarrow\) If she isn't more hard-working, she will get low marks.

3 .Unless he listens to his parents , he will fail

\(\Rightarrow\) If he doesn't listen to his parents, he will fail.

4. They began watching the movie one hour ago

\(\Rightarrow\) They have watched this movie for an hour.

5. He last cried ten years ago

\(\Rightarrow\) He hasn't cried for 10 years.

1 . If we don't protect the enviornment we will destroy ourselves

2 . If she isn't more hard - working she will get low marks 

3 . If he doesn't listen to his parents he will fail

4 . Thay have watched this movie for an hour

5 . He has not cried for 10 year

Hok tốt

là sao????? V_ing chia theo cấu trúc hay cách thêm ing vào sau động từ

Cấu trúc nhé bạn

k mink

• doctor

  /ˈdɒktər/ 

  bác sĩ

• dentist

  /ˈdentɪst/ 

  nha sĩ

• cashier

  /kæʃˈɪər/ 

  thu ngân

• builder

  /ˈbɪldər/ 

  thợ xây dựng

• reporter

  /rɪˈpɔːtər/ 

  phóng viên

• tailor

  /ˈteɪlər/ 

  thợ may

• teacher

  /ˈtiːtʃər/ 

  giáo viên

• cook

  /kʊk/ 

  đầu bếp

• magician

  /məˈdʒɪʃən/ 

  ảo thuật gia

• baker

  /ˈbeɪkər/ 

  thợ làm bánh

• singer

  /ˈsɪŋər/ 

  ca sĩ

• artist

  /ˈɑːtɪst/ 

  họa sĩ

• waiter

  /ˈweɪtər/ 

  bồi bàn

• carpenter

  /ˈkɑːpəntər/ 

  thợ mộc

• actor

  /ˈæktər/ 

  diễn viên

• nurse

  /nɜːs/ 

  y tá

• secretary

  /ˈsekrətəri/ 

  thư kí

• gardener

  /ˈɡɑːdənər/ 

  người làm vườn

• vet

  /vet/ 

  bác sĩ thú y

• businessman

  /ˈbɪznɪsmæn/ 

  doanh nhân

• policeman

  /pəˈliːs.mən/ 

  cảnh sát

• painter

  /ˈpeɪntər/ 

  thợ sơn nhà

• hairdresser

  /ˈheəˌdresər/ 

  thợ cắt tóc

• dancer

  /ˈdænsər/ 

  vũ công

• farmer

  /ˈfɑːmər/ 

  nông dân

Viết một đoạn 100-130 từ về những gì bạn nên làm gì để có một sức khỏe tốt?

A person with good health and fitness becomes able to live his/her life to its fullest extent. It is very important for a person in life to be physically and mentally fit to live a healthy and happy life. Healthy and fit people become less prone to the medical conditions. Fitness does not mean to be physically fit only, it also means with healthy mental state of the person. One can get healthy mental state if he/she becomes physically fit. The simple way to remain healthy and fit is having stress free mind with regular exercise and balanced diet. People who maintain their ideal weight become less prone to the cardiac and other health problems. People who are physically active can easily maintain a relaxed state of mind. Healthy and fit people can easily face all the ups and downs of their life and less affected by any dras change.

4 Barbara used to work in the Personnel Department. You met her at Libby's last Thursday.

Barbara, who you met at Libby's last Thursday, used to work in the Personnel Department.

5 Let's go to da Vinci's. They do a great pepper steak there.

Let's go to da Vinci's, where they do a great pepper steak

6 This book was once owned by Sir Francis Drake. It was given to me by my great aunt.

This book which It was given to me by my great aunt was once owned by Sir Francis Drake

7 Why did Danny decide to enter the marathon? Danny's totally unfit.

Danny's totally unfit, that's the reason why she decided to enter the marathon

8. Guy is now engaged to my sister. His sister is married to my brother

Guy, whose sister is married to my brother, is now engaged to my sister.

1. That tree which my grandfather planted 60 years ago is an oak.
2. Tina and Charlie who are idenal twins are having a parrty this Saturday .
3. Friday is the day when the ferry was delayed and we spent most of the day sitting in the port.
4. Barbara, whom you met at Libby's last Thursday ,used to work in the Personnel Department.
5.Let's go to da Vinci's that they do a great pepper steak.
6. This book which tt was given to me by my great aunt was once owned by Sir Francis Drake.
7. (sử  dụng "why")
8. Guy is now engaged to my sister whose his sister is married to my brother.

Chúc anh học tốt !!!!

 Tất nhiên bạn sẽ là ngưười đứng thứ hai rồi

Vì người thứ hai mà về sau bạn thì đứng thứ 3 , và bạn từ thứ 3 lên giữa thì chẳng phải là đứng thứ 2 hay sao

Đứng thứ 2, vì chạy qua người thứ 2 thì bạn vẫn sau người đi đầu thứ nhất, nên bạn vẫn chỉ đứng thứ 2.

học tốt

tiick mk

Bạn ơi ,câu hỏi là gì vậy?

Viết lại câu sao cho nghĩa ko thay đổi