Everyone should do something ______ wild animals.
#49313
A
to protect
B
protecting
C
protect
D
to protecting
推荐题目
What is the best way you think of ______ the environment?
#51117
A
to protect
B
protecting
C
protect
D
protected
A park is the best place ______ kites. I often go there at weekends.
#49458
A
fly
B
flying
C
to fly
D
flies
