问题
Let’s visit the old people’s house. —______ my mother asks me to do homework at home?
A:Why
B:What if
C:Why not
D:How
B:What if
C:Why not
D:How
正确答案是：
同类题型
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We find impossible to finish the work in a week.
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The boy first worked there ___ a waiter.[ ]
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