What can we students do _____ the environment?
#50177
A
to protect
B
protected
C
protecting
D
protects
推荐题目
You must eat all kinds of fruits and vegetables a balanced diet.
#49061
A
have
B
to have
C
having
D
had
________to the zoo, turn left when you come to the crossroads．
#50685
A
Get
B
Getting
C
To get
D
To getting
--My parents always tell me _________ others late at night. --They’re right. It’s not polite.
#51268
A
call
B
not call
C
not to call
D
to call