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Our class____a class meeting ____someone knocked at the door.
A was having:while B were having:when
人气:233 ℃ 时间:2020-05-24 20:59:01
解答
Our class was having a class meeting while someone knocked at the door.答案是B,请问为什么our class 我感觉是用was 单数的嘛
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