--- I hear that Hawaii is a good place to _____. ----Yes , I think so.
I don’t know when he______ tomorrow .When he_____ , I’ll let you know.
Tom likes playing _____volleyball, and his sister likes playing______ piano.
The meat smells _____. You’d better throw it away.
---Do you mind my taking this seat? ---______.
There are many tall trees on ______ side of the street.