—________was your brother’s weekend?—It was great.He went to the mountains.
I_______ my homework when the door bell__________.
What are you busy doing, Sandy?—— I’m making some flash cards _________ me remember English words.
Have you bought_________ for Linda’s birthday?----Not exactly.Just some flowers.
—Mr. Black, may I leave now?—Well, if your work ________, you can go home.
____can we get to the airport? The plane to Guangzhou takes off at 3:00 p.m. —Don’t worry. We will be there in ten minutes.