1. Why (you not go)…………………….. to the party last night?
2. John and his father (build) ___________ the cabin themselves last year?
3. When I was young I (want)…………………….. to be a pilot.
4. How long ago (he start) __________ to learn French?
5. They used (go) ……………… . swimming in the afternoon.
6. He (invite) ……………… . me to her party last night.
7. We used (write) ……… to each other every month when we (be) ………….at secondary school.
8. Nam (move)………………………to HN 10 years ago.
9. She (start)……………to teach English in 2000 ?
10. Why he (leave)…………… the party soon last night ?
11. They (spend)……………….………their last vacation in HCM city

19. The children (play) …………………………… soccer yesterday.
20. I (see) …………………… Nga at the bus stop every morning.
21. What you (do) …………………………………… last night?
22. It (be) ……………………….…..often hot in the summer.
23. My mother went to the supermarket yesterday, but she (not buy) ……….………. anything.
24. Nam and Ba (play) ……………………………. soccer at present.
25. My family (go) ………………….…………. Da Lat next summer.
26. I’d like (tell) ……………..………… you something about my family.
27. She needs (eat) ………….…………. a lot of vegetables and fruit.
28. Please don’t make so much noise. I (study)………………………..
29. The water (boil) ……………………………at 100 degrees Celsius.
30. Look! Somebody (climb) ……………………up that tree over there.
31. I (not see) ……………………………………her last week.
32. How long ago you (know) ……………………. Tom?
33. What you (do) …………………………… yesterday?
34. I hope it (not rain) ……………………when we (start) ………………….early tomorrow.
35. He (leave) ………….home two weeks ago and we (not hear) ………………from him since.
36. She (win) ……………………….the gold medal in 2004

`1`.Why didn't you go to the party last night?

`-`Why don’t(didn't:ở Qk) we/you + Verb (infinitive)?:Tại sao chúng ta/ bạn không làm gì ?

`2`.Did John and his father build the cabin themselves last year?

`-` Thì `QKĐ`:`(?)`:(Wh-)Did+S+V-inf

`3`.When I was young, I wanted to be a pilot.

`-` Thì `QKĐ`:`(+)`:S+Ved/PII+O+....

`4`.How long ago did he start to learn French?

`-` Thì `QKĐ`:`(+)`:S+Ved/PII+O+....

`5`.They used to go swimming in the afternoon.

`-`used+to V-inf:đã từng làm việc gì

`6`.He invited me to her party last night.

`-` Thì `QKĐ`:`(+)`:S+Ved/PII+O+....

`7`.We used to write to each other every month when we were at secondary school.

`-`used+to V-inf:đã từng làm việc gì

`-` Thì `QKĐ`:`(+)`:S+Ved/PII+O+....

`8`.Nam moved to HN 10 years ago.

`-` Thì `QKĐ`:`(+)`:S+Ved/PII+O+....

`9`.Did she start to teach English in 2000?

`-` Thì `QKĐ`:`(?)`:(Wh-)Did+S+V-inf

`10`.Why did he leave the party soon last night?

`-` Thì `QKĐ`:`(?)`:(Wh-)Did+S+V-inf

`11`.They spent their last vacation in HCM City.

`-` Thì `QKĐ`:`(+)`:S+Ved/PII+O+....

`12`.The children played soccer yesterday.

`-` Thì `QKĐ`:`(+)`:S+Ved/PII+O+....

`13`.I see Nga at the bus stop every morning.

`-` Thì `HTĐ`:`(+)`:S+V(s/es)+O+...

`14`.What did you do last night?

`-` Thì `QKĐ`:`(?)`:(Wh-)Did+S+V-inf

`15`.It is often hot in the summer.

`-` Thì `HTĐ` với tobe:`(+)`:S+is/am/are+O+...

`16`.My mother went to the supermarket yesterday, but she didn't buy anything.

`-` Thì `QKĐ`:`(+)`:S+Ved/PII+O+....

`17`.Nam and Ba are playing soccer at present.

`-` Thì `HTTD`:`(+)`:S+is/am/are+V-ing

`18`.My family is going to Da Lat next summer.

`-` Thì `TLG`:`(+)`:S+is/am/are+going to V-inf+....

`19`.I’d like to tell you something about my family.

`-`would like+to V-inf

`20`.She needs to eat a lot of vegetables and fruit.

`-`need+to V-inf:cần làm gì

`21`.Please don’t make so much noise. I am studying.

`-` Thì `HTTD`:`(+)`:S+is/am/are+V-ing

`22`.The water boils at 100 degrees Celsius.

`-` Thì `HTĐ`:`(+)`:S+V(s/es)+O+...

`23`.Look! Somebody is climbing up that tree over there.

`-` Thì `HTTD`:`(+)`:S+is/am/are+V-ing

`DHNB`:look

`24`.I didn't see her last week.

`-` Thì `QKĐ`:`(-)`:S+didn't+Vinf+O+....

`25`.How long ago did you know Tom?

`-` Thì `QKĐ`:`(?)`:(Wh-)Did+S+V-inf

`26`.What did you do yesterday?

`-` Thì `QKĐ`:`(?)`:(Wh-)Did+S+V-inf

`27`.I hope it won't rain when we start early tomorrow.

`-` Thì `TLĐ`:`(-)`:S+will not/won't+V-inf

`28`.He left home two weeks ago, and we haven't heard from him since.

`-` Thì `QKĐ`:`(+)`:S+Ved/PII+O+....

`-``-` Thì `HTHT`:`(-)`:S+hasn't/haven't+Ved/PII+O+....

`29`.She won the gold medal in 2004.

`-` Thì `QKĐ`:`(+)`:S+Ved/PII+O+....

`1.` didn't you go

- DHNB: last night

-> Thì QKĐ: (?) (WH-word +) did (+ not) + S + V(bare)?

`2.` Did John and his father build

- DHNB: last year

-> Thì QKĐ: (?) Did + S + V(bare)?

`3.` wanted

- When + QKĐ, QKĐ: khi

- Thì QKĐ: (+) S + V2/ed

`4.` did he start

- DHNB: ago

-> Thì QKĐ: (?) (WH-word +) did + S + V(bare)?

`5.` to go

- S + used to + V(bare): Ai đó đã từng làm gì đó

`6.` invited

- DHNB: last night

-> Thì QKĐ: (+) S + V2/ed

`7.` to write `-` were

- S + used to + V(bare): Ai đó đã từng làm gì đó

- QKĐ (S + V2/ed) + when + QKĐ (S + was/were + N/Adj): khi

`8.` moved

- DHNB: 10 years ago

-> Thì QKĐ: (+) S + V2/ed

`9.` Did she started

- DHNB: in 2000

-> Thì QKĐ: (?) Did + S + V(bare)?

`10.` did he leave

- DHNB: last night

-> Thì QKĐ: (?) (WH-word +) did + S + V(bare)?

`11.` spent

- DHNB: last vacation

-> Thì QKĐ: (+) S + V2/ed

`19.` played

- DHNB: yesterday

-> Thì QKĐ: (+) S + V2/ed

`20.` see

- DHNB: every morning

-> Thì HTĐ: (+) S + V(s/es)

`21.` did you do

- Tương tự câu 10

`22.` is

- DHNB: often

-> Thì HTĐ: (+) S + is/am/are + N/Adj

`23.` didn't buy

- DHNB: yesterday

-> Thì QKĐ: (-) S + didn't + V(bare)

`24.` are playing

- DHNB: at present

-> Thì HTTD: (+) S + is/am/are + V-ing

`25.` will go

- DHNB: next summer

-> Thì TLĐ: (+) S + will + V(bare)

`26.` to tell

- S + would ('d) like + to V: Ai đó muốn làm gì đó

`27.` to eat

- S + need + to V: Ai đó cần làm gì đó

`28.` am studying

- Diễn tả những sự việc xảy ra ngay lúc chúng ta nói hay xung quanh thời điểm chúng ta nói, và hành động đó vẫn chưa chấm dứt (còn tiếp tục diễn ra)

-> Thì HTTD: (+) S + is/am/are + V-ing

`29.` boils

- Diễn tả 1 chân lý, 1 sự thật hiển nhiên

-> Thì HTĐ: (+) S + V(s/es)

`30.` is climbing

- DHNB: Look!

-> Thì HTTD: (+) S + is/am/are + V-ing

`31.` didn't see

- DHNB: last week

-> Thì QKĐ: (-) S + didn't + V(bare)

`32.` did you know

- Tương tự câu 4

`33.` did you do

- DHNB: yesterday

-> Thì QKĐ: (?) (WH-word +) did + S + V(bare)?

`34.` won't rain `-` start

- S + hope(s) + (that) + TLĐ (S + will + V-inf): hy vọng

- TLĐ (S + will + V-inf) + when + HTĐ (S + V-s/es): khi

`35.` left `-` haven't heard 

- DHNB: two weeks ago

-> Thì QKĐ: (+) S + V2/ed

- DHNB: since

-> Thì HTHT: (-) S + haven't/hasn't + V3/ed

`36.` won

- DHNB: in 2004

-> Thì QKĐ: (+) S + V2/ed