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1 . is
2. teaches
3. goes
4. starts
5. ends
6. has
7. watches
8. reads
9. works
10. goes
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I have many subjects at school
I like English best of them
I practice speaking English with my friends
We have three English lessons a week
I want to be good at English
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1,What is she doing with her food
2. What time does your class start ang end in the afternoon
3. Where is your father work
Câu 1 sai,mik sửa luôn rồi đấy k mik nha
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\(\frac{6^5.35^7}{14^7.15^5}=\frac{2^5.3^5.5^7.7^7}{2^7.7^7.3^5.5^5}=\frac{5^2}{2^2}=\frac{25}{4}\)
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Rút gọn A và B
\(A=\frac{3.21}{7.15}=\frac{63}{105}=\frac{3}{5}\)
\(B=\frac{49-7.49}{49.9}=\frac{-294}{441}=\frac{-2}{3}\)
Quy đồng 2 phân số có mẫu số chung :
\(\frac{3}{5}=\frac{3.3}{5.3}=\frac{9}{15}\)
\(\frac{-2}{3}=\frac{-2.5}{3.5}=\frac{-10}{15}\)
Vậy tổng của A và B là : \(\frac{9}{15}+\frac{-10}{15}=\frac{9+\left(-10\right)}{15}=\frac{-1}{15}\)
A= 3.21/7.15
A= 3.3.7/7.3.5
A= 3/5
B= 49-7.49/49.9
B= 49.(7-1)/49.9
B= 49.6/49.9
B= 6/9
B= 2/3
Ta có: A= 3/5
B= 2/3
=> A+B= 3/5 + 2/3
= 9/15 + 10/15
= 19/15
Vậy A +B= 19/15
Hơi khó nhìn
Thông cảm nhé !
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1. we don't stay up late at night
2. my sister goes on a trip every year
3. 2 km isn't too far to jog
4. nam speaks english very well
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1.had
3.phoned
2.bought
4.took
5.was
6.came,turned
7.didn do.went
8.did,start
9.was
10.win
1.have
2.bought
3.phoned/didn't answer
4.took
5.were
6.coming,turning,sitting,begining
7.didn't do,went
8.did,started
9.would be
10.won
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\(=\frac{\left(2.3\right)^6.\left(5.7\right)^7}{\left(2.7\right)^4.\left(3.5\right)^5}=\frac{2^6.3^6.5^7.7^7}{2^4.7^4.3^5.5^5}=\frac{2^2.3.5^2.7^3}{1.1.1.1}=\left(4.25\right).3.7^3=100.3.343=102900\)
Là starts bạn nhé(^^^)
Đúng 100%
my english class started at 7:15