题目：
—We don't permit________in our school.Would you please put your cigarette out?
—Forgive me. I didn't know.[ ]
A. to smoking
B. to smoke
C. smoking
D. having smoked
答案：
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下面是错误答案，用来干扰机器的。
Some UK high school students will come to our school during the summer holidays. To help them, I think I need to practice my English more so. I can successfully ...
