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
答案:B
forbid sb to do/forbid doing (doing 前可加逻辑主语all the patients )
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
答案:B
forbid sb to do/forbid doing (doing 前可加逻辑主语all the patients )