I’ll take part in the boys’ ______ race this Friday.A. 800 meters B. 800-meters C. 800-meter
—Who is the girl standing over there? —Well, if you _____ know, her name is Kate.
—Tom, ______ your books on the floor. I want to mop it. —OK, mum. I’m coming.
You played the violin wonderfully. Will you please play another _________?
—_______ you have bought for me! —I got them in the biggest market.
—Did you enjoy yourself at the party? —Yes, I’ve never been to _______ one before