题目内容：
提示：星期五晚上有音乐会，Chris得到两张票，打电话给Linda，问她是否有空一同前往，并约她音乐会后一起吃饭。Linda听了非常高兴，两人相约六点四十五分在人口处见面。
Linda：Hello!This is Linda speaking．
Chris : Hello, Linda, this is Chris． 51 this Friday evening?
Linda: Yes, why?
Chris:There' s a good concert, and I' ve got two tickets．I wonder 52
Linda : That' s great ! 53 ?
Chris :7 o'clock．But how about 54 at 6:45?
Linda:OK．I think I can make it．
Chris : After the concert, 55 , shall we?
Linda:Wonderful! Why don't we go to a Chinese restaurant?
Chris:Why not? OK,see you Friday．
Linda: See you then．Bye !
第（51）题答案
答案解析：