问题
Has Sam finished his homework today? — I have no idea. He ________ it this morning.
A:did
B:was doing
C:has done
D:had done
B:was doing
C:has done
D:had done
正确答案是：
同类题型
Good morning, Madam.—Hello, I’d like to buy a book or amagazine on fashion.—_________
Is this the book you are looking for— Yes It’s the ________ one I am after
30. The man that people think is a black sheep in the city will ____ imprisonment.
It rained heavily last night. ________, much of the farm and forest land has been destroyed. ( ).