——Mum, may I have some cakes?——Sorry, there’s ____ left in the box. I’ll go and buy some for you tonight.
_______ used to _______ a post office near my house.
I don’t know when he______ tomorrow .When he_____ , I’ll let you know.
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.