问题

The teacher is already standing here. Do you know when she ______
A:comes
B:came
C:is coming
D:was coming;
B:came
C:is coming
D:was coming;
正确答案是:
同类题型
The weatherman said that it is ____ to rain, but not _____.
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Are you going to help him?—Why ___ I help him? He’ s never done anything for me.