问题
Why didn’t you go to play football with us yesterday afternoon—I my mother with the housework then.
A:helped
B:was helping
C:had helped
D:have been helping;
B:was helping
C:had helped
D:have been helping;
正确答案是：
同类题型
_____ pleasant life we are having in thenew century!
Must I hand in my paper now, Mr. Jones—No, you ___. You can hand it in tomorrow.
This book on idioms is interesting. I’d like , where did you buy it, Simon—In the Amazon Bookstore,
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May I take this magazine out of the reading room—No, you _____. You read it in the library.