Excuse me, what’s this for?—It’s a cleaner and ittopick up dirt. A．uses

Could I have a word with you，mum?—Oh，dear，if you _____．

Sir, a Mr. Wang is waiting for you at the gate. ________ he come in or stay there?

What are you doing here, Mrs. White—I’m waiting for my son. He________ back from school.

How about playing basketball after thefinal examination–______.