If you _____ smoke, please go outside.

---How did you do in the test yesterday? -----Not so well. I ______ much better but I misread the directions for writing.   

You ______ wear sports shoes when you climb a mountain.

—The speaker is a tall man with glasses.—Then it         be Mr. Smith, who is short and thin.

--- We need someone to host the New Year Party. --- ________ the handsome young man have a go?