—There is a knock at the door. —---------------? A.who is that? B.who can it be? ...

—There is a knock at the door.
—---------------?
A.who is that?
B.who can it be?
C.who is he?
D.do you think who he is?
在线等啊啊啊！最好有解释
a和c为什么不对啊

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推荐答案 2012-04-21

B
A是问门外的那个人。
C的意思是他是谁？此时并不能确定门外是谁，所以只能用it，而不能用he

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第1个回答 2012-04-21

B 是问谁的钟，又不是问是谁

第2个回答 2012-04-21

选B。可能是谁。

第3个回答 2012-04-21

a

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