I don’t allow ______ in my office.I don’t allow my family ______ at all.

问题描述:

I don’t allow ______ in my office.I don’t allow my family ______ at all.
A.to smoke;somking
B.smoking;to somke
C.to somke;to somke
D.somking;somking
为什么选B?理由是什么?

allow doing,allow sb. to do