问题

He has a friend _______ father is a doctor.
A:who
B:whom
C:whose
D:which
B:whom
C:whose
D:which
正确答案是:
同类题型
The social worker asked Daniel ______________.
The box is heavy I can’t lift it.[ ]
The boy never has____breakfast. —-It’s___unhealthy habit.you must ask him to change it.
What’re the rules in class?—First, mobile phones can’t be ______.
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