—Wereyouathomewhentheteachervisitedyourhome?—Yes,I

問題詳情：

—Were you at home when the teacher visited your home?

—Yes, I_____ my homework.

A. will do                       B. was doing          C. has done               D. had done

【回答】

B

知識點：動詞時態

題型：選擇題