问题

Susan decided not to work on the program at home because she didn’t want her mother to know what she _____

A:has done
B:had done
C:was doing
D:is doing

正确答案是：

同类题型

15 __________ made his mother worried

_____ water do you need——A cup is enough(足够的).

He had a headache and went to drugstore to get something for his pain ____.-But the form cannot be signed by anyone ____ himself.

Weifang you see todayis quite different city from what it was10 years ago.

Our hall is ＿＿＿＿theirs