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 |
B
解析
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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 |
B
解析