—What does your friend Carl do after school?—He ___________chess in a club. He’s a good player.
Teenagers like reading the books ________ are written by Guo Jingming.
Kate knew nothing _______ her mother told her.
There are many kinds of pollution around us, _________ air pollution, noise pollution and light pollution..
You may ________the story book for two weeks.
! Our grandpa is sleeping.