一道单选关于until和 as soon as的区别?

来源：学生作业帮编辑：作业帮分类：英语作业时间：2024/05/09 18:52:56

一道单选关于until和 as soon as的区别?
Just use this room for the time being,and we’ll offer you a larger one ____it becomes available.
A.as soon as B.unless C.as far as D.until
此题为什么不能选D?还有BC为什么也不能选?（重点是D为什么不选?）

A. as soon as
Just use this room for the time being, and we’ll offer you a larger one as soon as it becomes available.
现在先用这个房间,一等那大房间可以用了我们就提供给你们.
B. unless（除非）
用unless的话,应该用we will not
Just use this room for the time being, and we will not offer you a larger one unless it becomes available.
现在先用这个房间,我们没办法提供给你们一个大房间除非它空出来了.
C. as far as
1. (表示程度或范围)就…,尽…,至于
2. 像…那么远,一直到…,远到…
3. 远到…,一直到…；到…那么远；像…那样远
4. [口语][表示程度、范围]就…；就…而论,尽…；至于,说到
可见as far as一般用于距离或者范围,这里根本插不进去
D. until（在…以前；直到…时）
和unless一样,应该用we will not
Just use this room for the time being, and we will not offer you a larger one until it becomes available.
现在先用这个房间,我们没办法提供给你们一个大房间直到它空出来了.
举例
you should not leave until 6. 你不能走,直到6点（你6点之前不能走）
就如同你的原句中：不能提供大房间,直到空出来
所以要用until,前面就必须加not

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