问题
His mother always tells him that he should be more careful, but ____ doesn’t work.[ ]
A: which
B: she
C: he
D: it
B: she
C: he
D: it
正确答案是：
同类题型
It was yesterday evening________ you had the electricity cut off in your house.
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I’d rather have a room of my own, however small it is, than ______ a room with someone else.[ ]