10. is singing

Exercise 5:1. finished

2 was built

3 cuts

4 won't come

5 says/talks

6 had you done/went

7 broke/stole

8 listened

9 will say

10 get/rises

Exercises 6: 1. asks

2. am working

3 was/wanted

4  leaves

5 met

6 goes/ didn't go

7 will travel

8 have/had

9 brushes/forgetted

10 doesn't like/ drinking

Exercise 7:1. was/drank

2 goes

3 to tell

4 playing

5 listening/listening

6 taking/watching

7 gathering

8 was/liked going

9 are sitting/ are waiting

10 inviting

Exercise 8:1. bought

2 will they spend

3 do you think Tom will do/  will tell

4 Will you wait/ am looking

5  will speak

6 am doing

7 am understanding/ to say

8 won't be/ will wait