—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?a和c为什么不对啊
问题描述：
—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?
a和c为什么不对啊
答
a
答
选B。可能是谁。
答
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
答
B 是问谁的钟，又不是问是谁