题目内容

He ________ get into his house last night because he lost his key.

[  ]

A.

can't

B.

could

C.

couldn't

D.

can

答案:C
解析:

last night是表示过去的时间状语,常用于一般过去时。“丢了钥匙”,因此“不能进门”。


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