—We must do something to save wild animals.--You are right. We should make more rules to ___ wild animals_____being killed.
.Everyone should learn ___________about the world.
We go to play volleyball ___________ Friday afternoon.
The students in her class are never late _____ school and they’re nice ____ each other.
It is very good for students to do ___________ in the morning.
Would you like to go to the park with me? ____________.