you turn off all the lights when you leave the classroom．
#96287
A
Making sure
B
To make sure
C
Being sure
D
Make sure
推荐题目
New ideas sometimes have to wait for years before ________.
#89124
A
being fully accepted
B
fully accepted
C
fully accepting
D
fully being accepting
With a lot of difficult problems____________ , the manager felt worried all the time.
#98149
A
to settle
B
settling
C
settled
D
being settled
All the people present agreed that the matter required ___________.
#94154
A
to look into
B
being looked into
C
to be looked
D
looking into
.Opening the book, she found in it a white, plain envelope with her name ______ on it.
#96248
A
to print
B
printed
C
printing
D
print