题目内容

Vaccines are a useful invention to(), human beings against many ailments.

A. immunize
B. fight
C. help
D. kill

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The movie was so()that we didn't want to miss a minute of it.

A. pleasant
B. successful
C. thrilling
D. cheerful

It was a publisher's nightmare, one on which you could() your shirt.

A. deprive
B. bereave
C. lose
D. forfeit

() the dangerous situation, you'd better help her.

A. Give
B. Giving
C. Gave
D. Given

It is hard to evaluate the impact of this event()the financial market.

A. to
B. on
C. through
D. from