50. If someone asks for help impolitely, I will__________ to give him any help.

49. The prices of buildings __________ day by day and many people can t afford to buy them.

48. We should spend more time working. We shouldn't _______ time playing computer games.

47. We must save our money. After all, we have 10 days left. I can't ______ how we would live without money.

46. --When will the girl come back from America?

--She is ______ to be back in a week.

45. --There's much time left. We needn't do it in a hurry.

　 --I don't think so. The ______ we do it, the later we go back.

44. --I want to be a film star when I grow up.

--I hope your __________ can come true if you work hard.

43. --It's too late now. You'd better go home in time, or your parents will get __________

--I will go home as soon as I finish my work.

42. After the earthquake happened in Wenchuan, Sichuan, all the other people in China _____ food and clothes for people there.

41. I asked the boy many times, but he didn't 　　　　to me.