----l'm going to Qingdao and stay there for a week.---I’m going to Qingdao and stay there for a week.---________ you are there,would you please buy some books for me?A.If B.While C.Since D.As soon as为什么答案是B而不是A?
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----l'm going to Qingdao and stay there for a week.
---I’m going to Qingdao and stay there for a week.
---________ you are there,would you please buy some books for me?
A.If B.While C.Since D.As soon as
为什么答案是B而不是A?
就选B,因为‘你在那里’,是延续性的,只能用while.
用if 就是虚拟语气了,就不能用现在时态了
A. If 是虚拟语气的引导词,如果选A ,这样写才是对的:
-If you would be there, would you please buy some books for me?
b是当 的意思 a 是如果 的意思 while强调同时发生
就选B,因为‘你在那里’,是延续性的,只能用while。
望采纳
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