题目内容
Bob would have helped us yesterday, but he_________.
A. was busy B is busy C. had been busy. D. will be busy
A
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Bob would have helped us yesterday, but he-_______
A.was busy | B.is busy | C.had been busy. | D.will be busy |
Bob would have helped us yesterday ,but he_______________.
A.was busy busy |
B.is busy |
C.had been busy |
D.will be busy |