We all tried to stop ________ in the room, but he wouldn’t listen to us．

We all tried to stop ________ in the room, but he wouldn’t listen to us．

A.him to smoke

B.him smoking

C.smok

D.to smoke

答案及解析： B

解析：

stop/prevent sb．(from)doing sth．, keep sb．from doing sth．意为“阻止某人做某事”。