Which city has _____ population, Dongying, Shanghai or Jinan?

How do you like these two books? —___________ of them are interesting. I want to read them again.

If you want to keep healthier, you must eat ____ vegetables and _____meat.

I once heard him ____ that a rainbow was a bridge from earth to heaven.

Could you please _____ so much noise? —Sorry, I won’t do that.