After eight hours’ hard work, the firemen         the big fire at last.

—When will the party begin?   —When all the people invited          .

The old men are playing chess. Do you mind _____ the music a little?

—Do you know who invented Chinese chess?—Sorry. I don’t know. Let’s ______ the Internet ______ . 

I ________ a letter from him this morning. I felt very excited.