单项选择题

He kept silent, so I couldn’t know（）he agreed （） not.

A. if; or
B. whether; or
C. either; or
D. neither; nor

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单项选择题
The manner （） which he talked reminded us （） his grandfather.

A. on; towards
B. at; in
C. for; by
D. in; of
单项选择题
The police are （） for the thief in the region now.

A. running
B. reaching
C. searching
D. charging
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