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四川省双流中学2010-2011学年高二12月月考英语试题
.单项选择（共15题: 每小题1分，满分15分）
从A、B、C、D四个选项中选出可以填入空白处的最佳选项，并在答题卡上将该项涂黑。
21. He ____busy yesterday, or he ___you with your experiment.
A. was, had helped B. was, would have helped
C. had been, would have helped D. were, would have helped
.单项选择（共15题: 每小题1分，满分15分）
从A、B、C、D四个选项中选出可以填入空白处的最佳选项，并在答题卡上将该项涂黑。
21. He ____busy yesterday, or he ___you with your experiment.
A. was, had helped B. was, would have helped
C. had been, would have helped D. were, would have helped
