1.The boys (to run) about in the garden.
2. I (to do) my homework.
and his friends (to go) to the library.
4. Ann (to sit) at her desk.
5. She (to study) geography.
6. The old man (to walk) about the room.
7.The dog (to sit) on the floor.
8. Who (to lie) on the sofa?
9.What they (to talk) about?
10. It still (to rain).
11. She still (to sing).
12 They (to work).
13. We (to cook) dinner.
14. My mother (to make) a salad.