--- I dropped in at your house at about ten last night, but you weren’t in.
--- I ______ regular exercises at the club.
A.did | B.was doing | C.had done | D.have been doing |
相关知识点
推荐套卷
--- I dropped in at your house at about ten last night, but you weren’t in.
--- I ______ regular exercises at the club.
A.did | B.was doing | C.had done | D.have been doing |