What can we students do _____ the environment?
#50177
A
to protect
B
protected
C
protecting
D
protects
推荐题目
My father shows me how _____ a camera.
#49744
A
use
B
to use
C
using
D
used
The boring film on TV make me       to sleep.
#49607
A
wants
B
to want
C
want
D
wanting
It’s time        .
#50478
A
for breakfast
B
have breakfast
C
for I to have breakfast
D
for have breakfast