题目内容

To keep the air clean, this hospital forbids all the patients _____ in and around it.

A. smoke
B. smoking
C. to be smoking
D. smoked

试题答案

B
涓€棰樹竴棰樻壘绛旀瑙f瀽澶參浜�
涓嬭浇浣滀笟绮剧伒鐩存帴鏌ョ湅鏁翠功绛旀瑙f瀽
绔嬪嵆涓嬭浇
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