`1.` We spent hours doing this work.

`@` Spend`+`time`+`V-ing...: dành thời gian làm gì đó

`2.` Eggs were eaten by Hoa this morning.

`@` Bị động qkđ: S`+`was/were`+`V(ed,c3)`+`O...(by`+`O)

`3.` He asked me if my father often drives that car.

`@` Câu tường thuật(câu hỏi): S`+`asked`+`O`+`if/whether`+`S`+`V(lùi thì)

`4.` Lan had the room cleaned by me.

`@` Bị động qkht: S`+`had`+`N`+`V(ed,c3)`+`(by`+`O)

`5.` We have been working here since last year.

`@` Thì htht tiếp diễn: S`+`has/have`+`been`+`V-ing ( `DHNB:` last year)

`6.` He asked us if we had eaten that food the previous night.

`@` Câu tường thuật(câu hỏi): S`+`asked`+`O`+`if/whether`+`S`+`V(lùi thì)

`@` QKĐ → QKHT

`7.` I asked him if he would come here tonight.

`@` Câu tường thuật(câu hỏi): S`+`asked`+`O`+`if/whether`+`S`+`V(lùi thì)

`@` Will → Would(đtkt)

`8.` The car isn’t new enough for me to drive.

`@` S`+`tobe(is.am.are)`+`(not)`+`adj`+`enough`+`for sb/sm`+`to-V...: Đủ ntn cho ai lmj

`9.` They said they hadn’t used that bike the previous day.

`@` Câu gián tiếp(câu kể): S `+` said `+` (that) `+` S `+` V(lùi thì)

`@` QKĐ → QKHT

`10.` Because of his hard work, he didn’t fail the exam.

`@` Cấu trúc: Because of`+`Noun phrases/V-ing, S`+`V`+`O...: Bởi vì...nên

`giahan27511`

1. we spent hours doing this work

- it takes sb time to do sth `=` sb spend time doing sth : ai đó dành thời gian làm gì

2. Eggs were eaten by Hoa this morning

- Bị động QKĐ: S +  was/were + V3/ed + (by + O)

3. He asked me if my father often drove that car

- Câu gián tiếp dạng Yes/No question:
S + asked + O + If/Whether + S + V(lùi thì)

- lùi thì: HTĐ -> QKĐ

- this -> that

4. Lan had the room cleaned ytd

- have sb do sth 

`=` have sth done (by sb)

5. We have worked here since last year

- S + began/ started + to_V + O

= S + has/have + V3/ed + O

6. He asked us if we had eaten that food the previous night

- lùi thì: QKĐ -> QKHT

- this -> that

- last night -> the previous night / the night before

7.I asked him if he would come there that night

- will -> would

- here -> there

- tonight -> that night

8.The car isn't new enough for me to drive

- S + tobe + (not) + adj + enough + for sb + to_V : đủ cho ai làm gì

9. They said that they had not used that bike the previous day

- Câu gián tiếp dạng câu kể:
S + said + (that) + S + V(lùi thì)

- lùi thì: QKĐ -> QKHT

- this -> that

- ytd -> the previous day/ the day before

10. Because of working hard, he didn't fail the exam

- Because + S + V + O, S + V + O

`=` Because of + V_ing/N, S + V + O

-> bởi vì.