中国石油大学 / 中石油
正确率:100%
15. He ___his leg when he _____in a football match against another school.
A、broke; played
B、was breaking, was playing
C、broke; was playing
D、was breaking; played
A、broke; played
B、was breaking, was playing
C、broke; was playing
D、was breaking; played
参考答案: