----______ do you do?

----I'm a worker.

______ is a letter for you.

There ______ some bread on the table.

介词填空：

I study ______ the people.

There are twenty-one girls in our class. One _____ them is from England.

Who isn't ______ school today?

He is now ______ home.

He goes to school ______ his bike every day.

We play games ______ Tuesdays and Thursdays.

stop ______