When he the door，he found his keys were nowhere.A. would openB. openedC. had openedD. was

发布时间：2020-08-17 09:53:07

When he      the door，he found his keys were nowhere.
A. would open
B. opened
C. had opened
D. was to open

网友回答

A. would open
B. opened
C. had opened
(答案→)D. was to open
解析：考查非谓语动词。动词不定式的用法。句意：当他要打开门的时候，他发现他的钥匙不见了。动词不定式表示将要发生的动作。
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