vote điểm giúp mk nhé
1. was opening ...... was doing.....was reading
2. did you do .... studied
3. did he arrive
4. was they painting .... came
5. was repairing .... was working
6. was watching ... went
7. was hanging .... were washing

1. When Mrs. Golan open (open) the door, her children were doing  (do) their homework and her husband  was reading (read) the newspaper.
2. What did you  do (do) yesterday morning? I studied (study) for an exam.
3.  did he arrived (arrive) to the meeting last Friday?
4.  were they  painting (paint) the walls when your mother came(come) home?
5. While Dan  was repairing (repair) the car, his sister is working (work) in the garden.
6. They were watching (watch) television when the lights went (go) out.
7. While mother  was hanging (hang) up the clothes, her two daughters were washing (wash) the dishes.
8. Tom was waterting (water) the flowers when it  started (start) to rain.
9. She  (talk) was taking on the phone when I  arrived (arrive).
10. I was reading (read) a book when you called (call) me.
11. The children  (play) tennis when their grandmother  (come) to visit them.
12. When Mrs Smith entered  (enter) the room, her children were listening (listen) to the radio very loudly.
13. Ann was sweeping (sweep) the floor while John was making (make) the beds.