题目内容
He ______ busy yesterday, or he ______ you with your experiment.
A. was; had helped B. was, would have helped
C. had been; would have D. were; would have helped
B
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题目内容
He ______ busy yesterday, or he ______ you with your experiment.
A. was; had helped B. was, would have helped
C. had been; would have D. were; would have helped
B