问题

Susan decided not to work on the program at home because she didn’t want her parents to know what she ______
A:has done
B:had done
C:was doing
D:is doing
B:had done
C:was doing
D:is doing
正确答案是:
同类题型
I have _____ homework to do than you.
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____ that you came here yesterday— By train.
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I _____ walk to school. But thismorning I took a bus because I got up late.