23. - Have you got the reply to your letter?
- No. I ________.
A. waited B. had been waiting C. have waited D. am waiting
22.-Why are you looking at them in surprised expression?
-Don’t you think question is surprising?
A.the, the B.a; the C.a; a D.the ; a
第一节:单项填空(共15小题,每小题1分,满分15分)
21. -I’m so glad I caught you at home. I need your help!
-________, Robin?
A.What’s up B.What else C.How come D.Why not