摘要：I could have helped him out, to tell the truth, I too busy. A. am B. was C. have been D. had been
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I could have helped him out, to tell the truth, I _____ too busy.
A. am B. was C. have been D. had been
查看习题详情和答案>>I could have helped him out, to tell the truth, I _____ too busy.
|
A．am |
B．was |
C．have been |
D．had been |
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