问题
选择题
Miriam arrived at 5 pm, but Mr. Whitker _______ the store.
A．closed
B．has closed
C．had closed
D．was closed
答案
C
题目分析：句意：Miriam下午五点到的，但是Mr. Whitker已经关了商店。从句意看，close the store这个动作是在arrive之前发生的，用过去完成时，选C。
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