问题
His writing is so confusing that it’s difficult to make out _______ it is that he is trying to express.
A:that
B:how
C:what
D:who;
B:how
C:what
D:who;
正确答案是：
同类题型
－Ｍay I go swimming now －No, you ______. You must finish your homework first.
You may give this message to_________ is at office
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I hope that my father will quit smoking because I wanthim to livemy grandpa does