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【題目】As many as five courses are provided, and you are free to choose ______ suits you best.
A.whatever
B.whichever
C.whenever
D.wherever

【題目】He had to pause from time to time to wipe the sweat from his forehead, because the air-conditioning system ______________.
A.broke in
B.broke up
C.broke out
D.broke down

A.becauseB.whyC.howD.when

【題目】Hot _______the night air was, we slept deeply because we were so tired after the long journey.
A.although
B.as
C.while
D.however

【題目】If my car _________more reliable, I would have driven to Lhasa instead of flying last summer.
A.was
B.had been
C.should be
D.would be

A. has comeB. did comeC. wouldD. had come

A. will happenB. happenedC. to have happenedD. to happen

A.areB.wereC.have beenD.had been