We do not permit _________ in the office.
#96232
A
to smoke
B
to smoking
C
for smoking
D
smoking
推荐题目
His spare time is made full use __ law. 31-35 DACAB
#93546
A
to study
B
study
C
of studying
D
of to study
Before going abroad he devoted all he could _______ his oral English.
#97453
A
improve
B
to improve
C
improving
D
to improving