对in two weeks提问应该用when还是how long例如:They will come back in two weeks.提问应该是非功过How long will they come back?还是when will they come back?

来源:学生作业帮助网 编辑:作业帮 时间:2024/11/24 15:55:33
对in two weeks提问应该用when还是how long例如:They will come back in two weeks.提问应该是非功过How long will they come back?还是when will they come back?
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对in two weeks提问应该用when还是how long例如:They will come back in two weeks.提问应该是非功过How long will they come back?还是when will they come back?
对in two weeks提问应该用when还是how long
例如:They will come back in two weeks.
提问应该是非功过How long will they come back?还是when will they come back?

对in two weeks提问应该用when还是how long例如:They will come back in two weeks.提问应该是非功过How long will they come back?还是when will they come back?
when will they come back?更合适一些,因为强调的是什么时候回来,而不是回来的过程持续多久.

这里的介词in是“at the end of period of time”即:某一段时间的结束,过了多久之后,有点类似after的意思。明白这个意思,那么针对in two weeks提问时自然就要用when而不能用how long了。

when will they come back?

是用when will they come back 回答的意思就是两星期后回来