I want to learn how()quickly.a.run b.to run c.runs d.ran填什么请解释还有一个问题:The sitting room needs(),but it'll have to wait until Saturday.a.cleaning b.to be cleaned .c.clean d.being cleaned填什么请解释

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Iwanttolearnhow()quickly.a.runb.torunc.runsd.ran填什么请解释还有一个问题:Thesittingroomneeds(),butit''llhavetowai

I want to learn how()quickly.a.run b.to run c.runs d.ran填什么请解释还有一个问题:The sitting room needs(),but it'll have to wait until Saturday.a.cleaning b.to be cleaned .c.clean d.being cleaned填什么请解释
I want to learn how()quickly.a.run b.to run c.runs d.ran填什么请解释
还有一个问题:The sitting room needs(),but it'll have to wait until Saturday.a.cleaning b.to be cleaned .c.clean d.being cleaned填什么请解释

I want to learn how()quickly.a.run b.to run c.runs d.ran填什么请解释还有一个问题:The sitting room needs(),but it'll have to wait until Saturday.a.cleaning b.to be cleaned .c.clean d.being cleaned填什么请解释
第一题:是run,选A.第二题选Acleaning.
怎么解释呢,其他的要么是错的要么不是最好的.第一个用to run 也没有错,但为什么不选他呢,因为他有两个单词,当然要选简单的那个了.第二个needs 是动词,动词后面要加个名次词.所以选cleaning最合适.B D选项显然多余了,因为有了need 就不需要被动语态了.

选 b 首先不定式表将要做未做的事 房间与打扫之间是被动关系