Mike didn’t notice Alice entering his room. He a phone call.A. answeredB. has answeredC.

发布时间：2020-08-15 01:24:11

Mike didn’t notice Alice entering his room. He      a phone call.
A. answered
B. has answered
C. was answering
D. is answering

网友回答

A. answered
B. has answered
(答案→)C. was answering
D. is answering
解析：本句的语义环境为：He     a phone call when Alice entered his room表示过去某一时间正在发生.进行的动作，用过去进行时。故选C
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