cha 44 tuổi là đúng 

27/15=9/5=45/25

6/5 = 18/15 = 96/80 = 90/75

k đúng cho mk nha

bài dễ mà cũng phải gửi à thùy an

2+6+3+25=36

1. satisfied

2. respondents

3. industrialization

4. surroundings

5. failure

Bạn ơi đề bài cho như vậy

1. had already bought

2. had been

3. had gone away

4. went

5. had gone

6. got / had gone

7. remembered / had asked / phoned

phân số đấy là phan sô nào

thanks