Everyone should do something ______ wild animals.
#49313
A
to protect
B
protecting
C
protect
D
to protecting
推荐题目
--- I really don’t know how ________ this problem.--- Let me see.
#49068
A
to do with
B
to deal with
C
doing with
D
dealing with
_My parents always tell me_______others late at night._They are right. It’s not polite.
#51164
A
to call
B
call
C
not call
D
not to call