We were having a meeting suddenly someone knocked at the door.
A. because
B. when
C. as
D. while
We were having a meeting suddenly someone knocked at the door.A. becauseB. whenC. asD. wh
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解决时间 2021-01-04 12:18
- 提问者网友：浩歌待明月
- 2021-01-04 00:46
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- 五星知识达人网友：不甚了了
- 2021-01-04 01:54
A. because(答案→)B. whenC. asD. while解析：考查固定结构。Be doing sth. when…正在做某事，这时……；when在这是并列连词。选B。
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- 1楼网友：野慌
- 2021-01-04 03:11
正好我需要
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