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题目内容
（西安石油大学大学英语I（下））
It was not a good idea to go skating. You __________your leg.
(本题2.5分)
A、 can break
B、 could break
C、 could have broken
D、 could have been broken
(本题2.5分)
A、 can break
B、 could break
C、 could have broken
D、 could have been broken
参考答案