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

　　41.What ____ you _____ tomorrow?

　　A.do，do B.shall，do C.are，do D.are doing

　　42.Once you ____ that brand of beer，you will never want to drink any other.

　　A.drunk B.drank C.drink D.have drunk

　　43.I ____ her many times during the past weeks.

　　A.saw B.have been C.see D.had seen

　　44.The children ____ many times not to go near the fire.

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

　　45.The irrigation project _____ by the end of next month.

　　A.will have completed B.will be completing C.will have been completed D.will complete

　　46.____ Peter had won the first place in the 100-meter-dash.

　　A.He was said that B.They were said that C.It said D.It was said that

　　47.Such practice must ________.

　　A.put an end B.be put an end C.put an end to D.be put an end to

　　48.Now the living standard of the people _____.

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

　　49.The wild animals are ____ everywhere in the forests.

　　A.being hunted B.being hunt C.been hunted D.hunting

　　50.I should very much like to have gone to the ball but I _______.

　　A.am not invited B.shall not be invited C.am not being invited D.wasn't invited

　　51.Your arm is bleeding! Yes，I ____ it with a knife.

　　A.hurt B.was hurting C.have just hurt D.had hurt

　　52.They can't leave until they ____ their work.

　　A.did B.are doing C.have done D.had done

　　53.The last time ____ to the library was last week.

　　A.I've gone B.I've been C.I went D.I was

　　54.Don't disturb me.I _____ letters all morning and have written five.

　　A.write B.have written C.was writing D.have been writing

　　55.I wonder how long ago this school _____________.

　　A.has begun B.begins C.began D.had begun

　　56.There are so many people in front of the tailor's.What do you think _____?

　　A.happened B.has happened C.would happen D.had happened

　　57.I _____ that he had gone abroad.

　　A.tell B.told C.was told D.am told

　　58.Bamboo ____ into many things，such as chairs，tables，curtains and so on.

　　A.is used to making B.is used to make

　　C.used to making D.used to make

　　59.The boy ____ in the street until a man came to pick him up.

　　A.was crying B.has been crying C.had been crying D.cried