My father lost keys. Now he can’t get into the house, the office or the garage (车库).A. a p

My father lost keys. Now he can’t get into the house, the office or the garage (车库).
A. a pair of
B. a piece of
C. a cup of
D. a set of

A. a pair ofB. a piece ofC. a cup of(答案→)D. a set of解析：句意：我爸爸丢了一串钥匙，现在他不能进家、办公室和车库了。A一双、一副B一片、一块C一杯D一串、一套，故选D。

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