1. Mary/ play/ piano/ while/ her parents/ watch TV.
(1)
2. She/ paint/ a picture/ while/ her brother/ do/ his homework.
(2)
3. Jane/ bake/ a cake/ while/ her father/ decorate the house.
(3)
4. They/ explore/ city streets/ take/ photographs/ all day.
(4)
5. My sister/ play/ badminton/ while/ my brother/ fly/ kite.
(5)
6. Ngoc/ have/ meeting/ 9 a.m./ last Wednesday.
(6)
7. Quang/ read/ science book/ all morning.
(7)
8. he/ chat/ friends/ online/ 10 p.m./ yesterday?
(8)
9. I/ save/ money/ for months/ buy/ new/ car.
(9)
10. John/ sing/ while/ his friends/ dance/ at/ party.
(10)
11. They/ study/ Spanish/ all year/ prepare/ their trip.
(11)
12. My brother/ practise/ guitar/ all month/ improve/ his skills.
(12)

1. I'm sorry that I don't know what to do about the problem.
I wish (13)
2. Linda wrote her composition hours and hours ago.
It's hours (14)
3. When I was a child, we lived in Bristol.
We used (15)
4. She's sorry she can't play the piano.
She wishes (16)
5. I don't normally have coffee for breakfast.
I am not used (17)
6. It was breakfast time when Susan rang.
I was (18)
7. My mother spent three hours making a dress.
It took (19)
8. Reading newspapers in the morning gives him pleasure.
He enjoys (20)
9. You can make payments at any post office.
Payment can (21)
10. In the middle of our sleep there was a knock at the door.
When (22)
11. Nancy hasn't come here since 1999.
The last time (23)
12. During my dinner, the phone rang.
While (24)
13. David left the party before we arrived there.
When (25)
14. We haven't gone to a concert for ages.
It's (26)
15. Sarah hasn't seen her friends since she left for the United States.
Sarah last (27)
16. It's beautiful here. It's a pity that you can't see this beauty together with me.
I wish (28)
17. He feels sorry that he can't come to his brother's wedding.
He wishes (29)
18. That house is part of the town's heritage, but the council is demolishing it.
I wish (30)
19. My mother no longer cooks for me anymore since I got married.
My mother used (31)
20. My father used (32)