Use the correct tense or form of the verb in parentheses:
19. Anyone who ............... the work yet won't ................ to leave now. (not finish / allow)
22. When I noticed the blank stare he (give) .............. me, I (realize) ................ that he didn't undertand me.
23. Would you be so kind as (switch off) ................. the lights when leaving.
24. It's imperative that the wildlife program (broadcast) .................
25. The Presiden (deliver) ................ a speech, but in the end he (change) ............ his mind.
26. I'm sorry I wasn't in when you came round. I would like (see) ............... you.
27. I can't understand why he (be) ................ so selfish. He isn't usually like that.
28. Just inside the outer later of the earth's atmosphere (be) ................ the elements necessary to protect it from ultraviolet rays, extreme temperatures, and threatening foreign substances.
29. I hope you don't mind my mentioning this but some rumors (circulate) ............. about your engagement to banker.
30. I didn't see anyone but I (watch) ...............
31. He has worked hard all the week, but today he (have) ................. a good time at home.
32. There (be) ................ a lot of changes since computers were invented.
33. Nam (watch) ............... TV while his friends were making cakes yesterday morning.
39. Nobody would listen to the stories (tell) .............. by him so many times.
42. Tom (wash) ............... his hands. He has just repaired the TV set.
43. Don't forget to bring my dictionary when you (come) ............ back tomorrow.
50. His greatest ambition is (choose) ........... (take part) ................ in the Olympics London 2012.
51. None of the people (invite) ............... to the party can come.
52. I really don't know why she (not enter) ............... the last contest. She (win) .............. the first prize easily.
53. She (leave) .............. school last year. Since then she (work) ............. as a waitress at a local pub.
54. They felt tired and hungry, so they (sit) ............. down under a tree and (rest) .............. for lunch.