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英语单选He always gets to the office at half past eight,we will

来源:学生作业帮 编辑:作业帮 分类:英语作业 时间:2024/05/21 09:20:43
英语单选
He always gets to the office at half past eight,we will have finished all the cleaning
A.by which time B.at that time C.that D.which
我想知道by在这的意思是截止到吗?
是的,因为后面的句子是 have finished
句意:他总是八点半到办公室,到那时候我们已经打扫完卫生了.
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