—Please remember _________water pipe when you don’t need water. —OK, I will.
-Look! The boy with green hair is cool! - But I don’t think students _____to color their hair.
_____Roy ____Jean speaks good English, so they can communicate with these American students very well.
-My parents always warns me ______ with fire. -They are right. It’s dangerous.
- Mrs. Smith ______ singing as a hobby in her sixties, and she is really good at it now. -It’s never too old to learn.
We won’t allow _____in the museum. But you are allowed _____in the rest room.