21.You _____ wash the clothes,for we have just had our washi

21.You _____ wash the clothes,for we have just had our washing-machine repaired.
A.shouldn’t B.mustn’t C.needn’t D.didn’t have to
22.Despite the difficulty,the young was confident that he _____ get the job done on time.
A.can B.would be bale to C.will D.had managed to
23.Since the road accident,the poor old man _____ in the hospital enduring various operations.
A.lay B.has lain C.had lain D.was lying
24.You speak wonderful English.Where _____to learn it?
A.do you start B.have you started C.did you start D.did you started
25.How annoying.This is the third time that our conversation _____.
A.is interrupted B.has interrupted C.interrupted D.has been interrupted
26.By the end of next month,the new steel bridge ______.
A.will have been completed B.will be completed
C.had been completed D.has been completed
27.______ these are!
A.How delicious cakes B.What delicious cakes
C.How delicious a cake D.What a delicious cake
28.When we got back to our hometown,most of the old houses _____.
A.had pulled down B.have been pulled down
C.have pulled own D.had been pulled down
29.We ______ on the train when it pulled out of the station.
A.hardly got B.have almost got
C.had hardly got D.almost not got
30.The teacher’s lecture gives us some idea of _____ excessive drinking is harmful to our health.
A.that B.whether C.what D.why

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