To keep the air clean, this hospital for
题型:选择题
问题:
To keep the air clean, this hospital forbids all the patients _____ in and around it. |
A. to smoke B. smoking C. to be smoking D. smoked |
To keep the air clean, this hospital forbids all the patients _____ in and around it. |
A. to smoke B. smoking C. to be smoking D. smoked |