What can we students do _____ the environment?
#50177
A
to protect
B
protected
C
protecting
D
protects
推荐题目
He got up early ___________ miss the early bus.
#48780
A
to
B
in order not to
C
for
D
because of
Thanks for________ me to go to your English party.
#50265
A
invite
B
to invite
C
invites
D
inviting
Bridge Street is a good place    fun.
#50860
A
to have
B
having
C
have
D
has
 What is the best way ______ more English?
#50238
A
learn
B
learning
C
to learn
D
learned
There 's a teacher  _____ with your parents in the teachers' office.
#49948
A
is talking
B
talks
C
to talk
D
talking