When Mike __the front door ,he couldn't find his key .So he had t_英语解答

When Mike __the front door ,he couldn't find his key .So he had to wait for his wife to come back.
A.would open B was to open C.had opened D opened
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人气：371 ℃　时间：2020-04-03 07:57:04

解答

B was to do 过去正要做某事
“当Mike正要开门时,没找到钥匙.因此他只好等他妻子回来.”