国家开放大学 / 综合英语（3）
正确率：100%
I don't allow _ _ _ _ _ _ in my office and I don't allow my family _ _ _ _ _ at all.
A.to smoke … smoking
B.smoking … to smoke
C.to smoke … to smoke
D.smoking … smoking
A.to smoke … smoking
B.smoking … to smoke
C.to smoke … to smoke
D.smoking … smoking
参考答案：
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