1. I am going (to watch) a movie on this channel.
2. Do you recognise the girl (to sit) over there?
3. When I saw him falling into the big muddy puddle I couldn't help (to laugh).
4. You'd better tell him (to be) more careful with that heavy tool, it's pretty sharp!
5. Did the parents agree (to leave) their teenagers alone at home?
6. If I were you, I wouldn't even dream of (to joke) like this with such a nervous woman!
7. The teacher was waiting for his students to greet him and then asked them (to sit down).
8. The guards prevented the man who was guilty of arson from (to be) lynched by the angry crowd.
9. Do you fancy (to dive) with these masks and audio equipment? It would be great!
10. After they had tried it, we were never (to see) them again.
11. I remember that he used (to play) billiards even in his old age.
12. He began (to walk) cheerfully up and down along the seafront.
13. The expression in his eyes reveals that he is reciting without (to know) the meaning of the words.
14. You had better go out swimming on such a sunny day, instead of (to stay) here.
15. The baby tries (to stand up) but his legs aren't strong enough yet.