A pair of broken glasses ______ on the desk. A. is layingB. is lyingC. are lyingD. are laying
A pair of broken glasses ______ on the desk.
A. is laying
B. is lying
C. are lying
D. are laying
相关考题：
The cup, which _____by him yesterday, was a gift from an English friend.A. brokeB. was brokenC. broken
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Pair类表示“有序整数对”，考虑该类应具有的必要数据和行为，写出该Pair类的定义。