21.He asked me if I live in Hue city.

⇒Live⇔lived:Reported speech với câu hỏi yes no: If+S+V(lùi thì)

22.If he works hard, he would get good marks

⇒Would get⇔Will get(Works hard, câu điền kiện loại 1, would thành will)

23.She didn’t come back home last night, was she?

⇒Was she⇔did she(Didn't come là phủ định, cuối câu tag question là khẳng định, Did she)

24.Would you mind looking at my dog when I’m away?

⇒Would you mind⇔Do you mind(When I'm away, chỉ hiện tại dùng do you mind)

25.I can't tell the difference from these two cameras, they look so alike.

⇒From⇔between(Tell the difference between: nêu sự khác biệt)

26.If you got some more exercise, you will be much healthier.

⇒Will be⇔would be(Got=câu điều kiện loại 2, will thành would)

27.She wanted to know where did I buy most of my clothes.

⇒Did I buy⇔I had bought(Wh question trong reported speech: Wh+S+V(lùi thì)+O, Did I buy thành I had bought)

28. I suggest to have a separate wastebasket for waste paper.

⇒To have⇔Having(Suggest+V-ing)

29.There was a power cut while we watched a film on TV last night.

⇒While we watched⇔While we were watching.(Trong khi làm thì cúp điện, dùng past continuous)

30.Lan is age enough to drive the car.

⇒Is age enough⇔Age is enough(Something+To be+Enough+To ...)

#NOCOPY

#NOPLAGIARISM

`21.` live `->` lived

- Câu tường thuật dạng câu hỏi trả lời Yes or No.

- Công thức: S + asked (+O) + if/whether + S + V lùi thì

`22.` would get `->` will get

- Câu điều kiện loại 1

- Công thức: If + S + V(Hiện tại đơn),S + will + V(Tương lai đơn)

`23.` was she `->` did she

- Ta thấy vế trước có didn't come (Động từ chia ở thì QKĐ dạng phủ định) vậy vế sau phải chia ở thì QKĐ dạng khẳng địng.

`24.` Would you mind `->` Do you mind

- Thì HTĐ

- DHNB: When I'm away

`25.` From `->` between

- tell the difference between (someone or something): nêu sự khác biệt giữa (ai đó hoặc cái gì đó) 

`26.` will be `->` would be

- Vì vế If-clause ĐT chia ở thì QKĐ 

- Câu điều kiện loại 2

- If + S + V2/ V-ed, S + Would/ Could/ Should… + V

`27.` did I buy `->` I had bought

- Câu tường thuật ở dạng câu hỏi Wh-question

- S + asked (+Object) + Wh-question + S + V lùi thì

`28.` to have `->` having 

- Suggest + V-ing

`29.` While we watched `->` While we were watching

- thì HTTD

`30.` is age enough `->` Age is enough

- ST + tobe + enough + To infintive