1. While Tom (read) was reading , Amely (watch) was watching a documentary on TV.
2. Marvin (come) came home, (switch) switched on the computer and (check) his emails.
3. The thief (sneak) sneaked into the house, (steal) stole the jewels and (leave) without a trace.
4. Nobody (listen) was listening while the teacher (explain) was explaining the tenses.
5. While we (do) were doing a sight-seeing tour, our friends (lie) were lied on the beach.
6. He (wake) woke up and (look) looked at his watch.
7. The receptionist (welcome) welcomedthe guests and (ask) asked them to fill in the form.
8. The car (break) broke down and we (have) had to walk home.
9. The boys (swim) were swimming while the girls (sunbathe) were sunbathing.
10. My father (come) came in, (look) looked around and (tell) told me to tidy up my room.

1. was reading – was watching

2. came – switched – checked

3. sneaked – stole – left

4. listened – was explaining

5. were doing – were lying

6. woke – looked

7. welcomed – asked

8. broke – had

9. were swimming – were sunbathing

Nguồn : Jeni Nguyễn - ins: jenany.202_

1.While Tom (read) ..was reading ............, Amely (watch) ...was watching...................a documentary on TV.
2. Marvin (come) ....came..............home, (switch) .......switched...............on the computer and (check) checked his emails
3. The thief (sneak)......sneaked.............. into the house, (steal)strealed the jewels and (leave) .......leaved.............without a trace
4. Nobody (listen) ....was listened................while the teacher (explain).....was explaining................... the tenses.

hành động ngắn : nghe cắt ngag hd dài : giảng 
5. While we (do) ......................a sight-seeing tour, our friends (lie) ......................on the beach.