81.The cost of living ___ over 8 percent in the last ten years.

　　A.has raised B.rose C.has been raised D.had risen

　　82.____ many times，but he still couldn't understand it.

　　A.Having told B.having been told C.He was told D.Being told

　　83.Why didn't you answer the phone last night? I ___ when you called.

　　A.had to have slept B.have to be sleeping C.must have been sleeping D.must have slept

　　84.Where ____ when I was in Nanchang?

　　A.have you been B.had you been C.are you D.will be

　　85.My piano is good.____ since I was 18.

　　A.I got it B.I've bought it C.I have it D.I've had it

　　86.However much ______ it will be worth it.

　　A.does the watch cost B.costs the watch C.the watch will cost D.the watch costs

　　87.On her next birthday she ___ married for thirty years.

　　A.will be B.will have been C.has been D.is

　　88.He had thought the plane ____ by time he arrived.

　　A.was leaving B.would be leaving C.would have left D.left

　　89.As they ___ older they still knew each other well.

　　A.grew B.grow C.have grown D.would grow

　　90.He ___ to be clever.

　　A.was thought as B.was thought C.was thinking D.was that they thought

　　91.Up to then this _____ clear.

　　A.hasn't been made B.hasn't made C.hadn't been made D.hadn't made

　　92.She ought to _____ it finish before 10 o'clock.

　　A.ask B be asked C.being asking D.have asked

　　93.Who ___ such books _____ for ?

　　A.did，write B.will，write C.were，written D.was，written

　　94.She ____ to with great interest.

　　A.was listened B.listened C.is listening D.listens

　　95.The room had better ___，too.

　　A.clean B.be cleaning C.to be cleaned D.be cleaned

　　96.These buildings ____ up this time last year.

　　A.were put B.put C.have been put D.were being put

　　97.Everything that can ____ must ____.

　　A.do，do B.do，be done C.be done，do D.be done，be done

　　98.The village ___ in a valley.

　　A.situates B.situated C.is situated D.situate

　　99.It ____ right to help them with lessons.

　　A.was considered B.considered C.is considering D.considers

　　100.This pen ____ well.

　　A.writes B.is written C.was written D.has been written