问题
May and susan are twins and I can’t tell_____is_____.
A:which ;who
B:which ;which
C:who ;whom
D:whom ;who
B:which ;which
C:who ;whom
D:whom ;who
正确答案是：
同类题型
Do you know man in blue —Yes, he is a professor of Jiangsu University.
Sorry indeed, I ______to your birthday party if…—Forget it. I know you were out on business.[ ]
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