Would you mind _____ your school things on the bed ? —Sorry. I won’t do it again .

Jim! Is this your dictionary?—No, it isn’t. Ask Sally. She is looking for_______.

The air in Rizhao is getting much _____ now than a few years ago .

I can play ______ guitar, and I usually play it on ______ weekends.

Tennis isn’t the same _________badminton. They are different __________each other.[ ]