---When did your uncle arrive ____ China?---He got to Guangzhou _____ the morning of the 16th of April.
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.