Don’t forget      the lights when you leave.
#50822
A
to turn on
B
turn on
C
to turn off
D
turning off
推荐题目
 It is time     to school.
#49964
A
go
B
to go
C
going
D
goes
I’m surprised _______ my old friends in the street.
#48831
A
see
B
seeing
C
to see
D
to look at