Exercise 1:
1. c
2. b
3. a
4. c
5. b
6. c
7. a
8. c
9. c
10. a
Exercise 2:
1. he went
2. did you pay
3. he is
4. what his address is
5. have you been doing
6. did you study / were you studying; were they
7. have you worked
8. I can get
9. if I passed
10. was your favourite dish
Exercise 3:
1. what you would like to be in the future
2. where you spent your last holiday
3. if you have bought everything I need
4. what she is going to do next summer
5. what time you last saw him\
6. what you have been doing
Nirra665