题目内容

________ care. The stevedores are handling dangerous cargo nowa.

A. Be
B. Please to be
C. To be
D. Be for

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I failed ________ Mr. Smith yesterday

A. seeing
B. to see
C. saw
D. seen

Dense fog comes with bad visibility, fog signal bell must be kept ________at regulation intervals

A. to go
B. going
C. goes
D. go

________ there much cargo in the warehouse?

Are
B. Is
C. Be
D. Will be

Hold No. 4 must be cleaned up to meet the ________ of the cargo surveyors

A. rules
B. necessity
C. requirement
D. statute

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