来源：学生作业帮 编辑：作业帮 分类：英语作业 时间：2024/11/06 01:59:12
我正在扫地,突然有人敲门.用英语怎么说
1.When they got there ,the meeting had already started 2.They have already been to Shanghai several times .3.We were walking on a street when we heard the noise.4.I am sure (that) there is no one in the room.
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