1. (-) It wasn't rainy yesterday

    (?) Was it rain yesterday?

2. (-) Tom hasn't spoken VNese well before

     (?) Has Tom spoken VNese well before?

3. (-) They didn't went to school by bus last year

     (?) Dis they went to school by bus last year?

4. (-) He didn't study Math last month

     (?) Did he study Math last month?

Rewrite

1. We have worked in HN for 20 years

(-) We haven't worked in HN for 20 years

(?) Have you worked in HN for 20 years?

2. She has eaten this food for a long time

(-) She hasn't eaten this food for a long time

(?) Has she eaten this food for a long time?

3. Tom played football in 2000 / Tom has played football since 2000

(-) Tom didn't play football in 2000 / Tom hasn't played football since 2000

(?) Did Tom play football in 2000? / Has Tom played football since 2000?

*Put the correct form of verbs

1. was 

(-) It wasn't rainy yesterday 

(?) Was it rainy yesterday?

2. has spoken 

(-) Tom hasn't spoken Vietnamese well before 

(?) Has Tom spoken Vietnamese well before?

3. went 

(-) Last year they didn't go to school by bus 

(?) Last year, did they go to school by bus?

4. studied 

(-) He didn't study Math last month 

(?) Did he study Math last month?

*Rewrite

1. We have worked in Hanoi for 20 years

2. She has eaten this food before

3. Tom has played football since 2000 

Chúc bạn học tốt !!!