21.I haven't seen him since I _____ back.

　　A.am B.have come C.came D.come

　　22.They ______________.

　　A.have married for ten years B.married for ten years

　　C.have married ten years ago D.have married

　　23.I ____ to see my grandfather ______.

　　A.haven't gone，for eight months B.have gone，for eight months

　　C.went，for eight months D.have gone，eight months ago

　　24.I'll ring you up _______.

　　A.next morning B.tomorrow night C.next evening D.next night

　　25.We _____ to catch the 7：30 train，but we missed it.

　　A.want B.wanted C.had wanted D.have wanted

　　26.Will he get here on time? It's likely that she _________.

　　A.will do it B.will C.does D.gets here

　　27.Don't make any decision before you ____ it over.

　　A.are going to think B.have thought C.will think D.thought

　　28.I ____ tell you my story if it ____ you.

　　A.will tell，will interest B.will tell，interest

　　C.tell，interests D.tell，interest

　　29.I would have come earlier，but I ____ that you were waiting.

　　A.didn't know B.hadn't known C.knew D.haven't known

　　30.The goods ____ when he got to the railway station.

　　A.are just unloading B.are just being unloaded

　　C.had just unloaded D.were just being unloaded

　　31.I said that it was at least ten years since I ____ a good drink.

　　A.had enjoyed B.was enjoying C.enjoyed D.had been enjoying

　　32.____ this lovely box that Jack ____ out of an old one?

　　A.Do you see，made B.Did you see，had made

　　C.Have you seen，has made D.Have you seen，made

　　33.This machine _____ without repair.

　　A.is not to be used B.is not to use C.can't use D.ought not to use

　　34.Tom said to his teacher，“If you ____ to our party，we'll be overjoyed.” His teachers said，“ I'd like to.If I ____ free，I'll come.”

　　A.will come.Will be B.came，am C.will come，am D.come，will be

　　35.His dream of twenty years ____ had saved his life.

　　A.ago B.before C.later D.after

　　36.When you ____ the desks，please tell me.

　　A.will finish to move B.finish to move

　　C.will finish moving D.have finished moving

　　37.James has just arrived，but I didn't know he ____ until yesterday.

　　A.will come B.was coming C.had been coming D.comes

　　38.I _____ my composition by the time the teacher ____ back.

　　A.Shall have finished，comes B.was finished，came

　　C.had finished，comes D.have finished，will come

　　39.As I ____ an exam the next day，I went to bed early that evening.

　　A.will have B.was having C.was to be D.had

　　40.I have lost my purse.I ____ it since seven o'clock.

　　A.am looking for B.looked for C.have been looking for D.have looked for