题干
——Have you finished reading The Twilight Saga?
——No, I _______ my homework all day yesterday.
A：was doing
B：doing
C：did
D：have done
答案(点此获取答案解析）
A
——Have you finished reading The Twilight Saga?
——No, I _______ my homework all day yesterday.
A：was doing
B：doing
C：did
D：have done
