问题

It is ______ he often fails in exams ______ makes his parents worried about him
A: what, that
B: that, what
C: that, that
D: /, that
B: that, what
C: that, that
D: /, that
正确答案是:
同类题型
Even a drop of water ______because it is soimportant to all the living things.
____are your pants—Ninety-nine dollars.
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Go and ask Mr Green for help.—But I don’t know ______.
_____, I suppose, and the committee will get your plan through.