He started to walk faster and the children had to run to ________him.
A. come up with B. catch up with
C. keep up with D. put up with
I know it’s important to live an environmental life. So I _______ my story books to the kids.
A. give out B. give up
C. give away D. give back
______, Mandy. Everything will get better soon.
A. Cheer up B. Mix up
C. Clean up D. Turn up
—John isn’t happy today. Let’s go and ____.
—Good idea.
A. cheer up him B. cheer him up
C. to cheer up D. cheer up
---What are you going to do this weekend?
---I’m going to help _____the city parks with my classmates to make them clean.
A. set up B. fix up
C. put up D. clean up
Your bedroom is too dirty, please _______.
A. clean it up B. clean up it
C. clean-up it D. have clean