51．Please　 ▲　 (切)me a piece of cake．

50．Phone me 　▲ 　(今晚)when you get there．

49. Are you 　　▲　 　(有空的) this evening?

48. We had a very cold 　　▲　 　(冬季) last year.　

47. Do you 　　▲　 　(同意) with what I say?　

A) 根据句意及所给中文提示或英文解释，写出句中所缺单词。

46. My neighbours are very 　　▲　 　(友好的) to us.

20．The earthquake which happened in Yushu________ 14th April 2010 was a big disaster．

　　 A．at　　　　　　 B．on　　　　　　　 C．in　　　　　　　 D．to

19. Tom _______ the USA. He _______ back in two months.

A. has gone to; comes　　　　　　 B. has gone to; will be　　

C. has been to; comes 　　　　　　 　　　 D. has been to; will be　

18．________of the land in that district________ covered with trees and grass．

　 A．Two fifth；is　 B．Two fifth；are　 C．Two fifths；is　 D．Two fifths；are