题目内容

He was very sick and his life was hanging by a ______.

A. rope
B. thread
C. cord
D. string

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He refused to disclose ______, on the grounds that it would be a breach of confidence.

A. that had told him
B. what had told him
C. what had been told him
D. that had been told him

They are taking ______ steps in preparation for a possible war.

A. primitive
B. preliminary
C. productive
D. progressive

He drew on his cigarette and blew out a ______ of smoke.

A. flash
B. stream
C. storm
D. circle

The beauty of Venice largely ______ the style. of its ancient buildings.

A. consists in
B. relies on
C. composes of
D. comprises in

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