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题目内容
（国家开放大学英语语法）
If they hadn.t gone on vacation, their house_____.
A.wouldn.t break out
B.were not broken into
C.wouldn.t have been broken into
D.wouldn.t have broken out
A.wouldn.t break out
B.were not broken into
C.wouldn.t have been broken into
D.wouldn.t have broken out
参考答案