摘要： --- I dropped in at your house at about ten last night, but you weren’t in. --- I regular exercises at the club. (do) was doing
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--- 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
查看习题详情和答案>>— I dropped in at your house at about ten last night, but you weren't in.
— I ______ regular exercises at the club.
— I ______ regular exercises at the club.
[ ]
A. did
B. was doing
C. had done
D. have been doing
查看习题详情和答案>>
B. was doing
C. had done
D. have been doing