9、--- Has Sam finished this homework today?
--- Yes. He it this morning.
A. did B. has done C. was doing D. had done
9、A
科目：高中英語 來源： 題型：
--- Has Sam finished this homework today?
--- Yes. He it this morning.
A. did B. has done C. was doing D. had done
科目：高中英語 來源： 題型：
--- Has Sam finished this homework today?
--- Yes. He it this morning.
A．did B．has done C．was doing D．had done
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