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
She looks forward every spring to _____the flower-lined garden．
#94002
A
walking in
B
walk in
C
visit
D
paying a visit
_______ from her parents, she was left with her two young sisters--aged three and seven.
#97247
A
Being separated
B
Having been separated
C
Having separated
D
Had been separated
While watching television, .
#88583
A
the doorbell rang
B
the doorbell rings
C
we heard the doorbell ring
D
we heard the doorbell rings
The generous man devoted all he had _______ the victims, because of which he was highly praised.
#98495
A
to help
B
helping
C
helped
D
to helping
During the next ten years, she had to work hard _____ for the necklace.
#98321
A
paying
B
to pay
C
for paying
D
in order to paying