EX 1: Chuyển những câu sau sang phủ định và nghi vấn.

1. Tom traveled to Paris last summer.

(-) Tom didn't travel to Paris last summer.

(?) Did Tom travel to Paris last summer?

2. My mother left this city two years ago.                                                         

(-) My mother didn't leave this city two years ago.                                                             

(?) Did your mother leave this city two years ago?                                                                                    3. He died in 1980.                                                                                         

(-) He didn't die in 1980

(?) Did he die in 1980?

4. Mozart wrote more than 600 pieces of music.

(-) Mozart didn't write more than 600 pieces of music.

(?) Did Mozart write more than 600 pieces of music?

5. She worked as a secretary for 5 years before her marriage.

(-) She didn't work as a secretary for 5 years before her marriage.

(?) Did she work as a secretary for 5 years before her marriage?                                                     

6. He was absent from class yesterday.                                                             

(-) He didn't be absent from class yesterday.

(?) Did he be absent from class yesterday?                                           

7. I opened the door last night.

(-) I didn't open the door last night.

(?) Did you open the door last night?

8. He watched TV last night.

(-) He didn't watch TV last night.

(?) Did he watch TV last night?

9. Hoa went to the cinema with her friend last Sunday.

(-) Hoa didn't go to the cinema with her friend last Sunday.

(?) Did Hoa go to the cinema with her friend last Sunday?

10. I received a letter from my pen pal last month.

(-) I didn't receive a letter from my pen pal last month.

(?) Did you receive a letter from your pen pal last month?

EX 2: Chia động từ trong ngoặc ở thì quá khứ đơn.

1. Last year I (be) was thin because I (work) worked hard.

2. They (go) went out last night and (come) came home late.

3. Mr. Ha (teach) taught in this school many years ago.

4. I (not sing) didn't sing when I was small. 

5. Lan often goes to school early but yesterday she (go) went to school late.

6. Did he sleep well last night?

7. Mai (do) did a lot of things last summer.

8. They (know) knew this news three years ago.

9. We ( not see) didn't see him in town a few days ago.

10. The police (stop) stopped me on my way home last night.

EX 3: Chuyển các câu sau sang thì quá khứ đơn.

1. Tom usually gets up at 7.30.

Yesterday he got up at 7.30.

2. Hoa usually walks to school.

Yesterday she walked to school.

3. Peter usually wakes up early.

Yesterday he woke up early.

4. Linda is usually late for work.

Yesterday she was late for work.

5. Alan usually has a sandwich for lunch.

Yesterday he had a sandwich for lunch.

6. Lili usually goes out in the evening.

Yesterday she went out in the evening.

7. David usually sleeps very well.

Last night he slept very well.

EX 4: Chia động từ trong ngoặc ở thì quá khứ đơn.

1. Yesterday, I (go) went to the restaurant with a client.

2. We (drive) drove around the parking lot for 20 minutes to find a parking space.

3. When we (arrive) arrived at the restaurant, the place (be) was full.

4. The waitress (ask) would ask us if we (have) had reservations.

5. I (say) said, "No, my secretary forgets to make them."

6. The waitress (tell) told us to come back in two hours.

7. My client and I slowly (walk) walked back to the car.

8. Then we (see) saw a small grocery store.

9. We (stop) stopped in the grocery store and (buy) bought some sandwiches.

10. That (be) was better than waiting for two hours.