问题描述：
—Sorry,I don't know what the teacher said just now.—He asked Maria _____.[ ]
A.how long she usually spends on her homework
B.what she was doing these days
C.why didn't Mike come to the meeting yesterday
D.when the speaker will begin
正确答案是B.为什么?A选项不可以吗?
A.how long she usually spends on her homework
B.what she was doing these days
C.why didn't Mike come to the meeting yesterday
D.when the speaker will begin
正确答案是B.为什么?A选项不可以吗?
问题解答：
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