当你想知道这些物品是谁的时,问: A. Whose are these?B.Whose are those?C.Who are they?
—Where is the library? -----__________ A. Yes, we do. B. It’s on the second floor. C. No, it isn’t.
It’s time ______ go to bed. A.toB. forC. at
Do you have _____art room? A. aB. anC. /
Is this the ______office? A. teacher B. teachers’ C. teacher’ s
What’s the weather like _____ Beijing? A. inB. onC. at