—What do you think of the dress?
—Wonderful. I don’t think I can find a _________ one.
A. good B. better C. bad D. worst
—Mr Hu, can you tell us how to learn math well?
—Sure. But remember nothing can be learned _________ hard work.
A. by B. at C. without D. for
—Mom, can I leave my homework for tomorrow?
—I’m afraid not. Don’t _________ what you can do today till tomorrow.
A. put on B. put down C. put up D. put off
_______ you wait a few more minutes? It’ll be your turn soon.
A. Must B. Should C. Could D. Might
—I called you at 4:00 yesterday afternoon, but no one answered.
—Sorry, I ______ with my friends at that time.
A. swim B. swam C. will swim D. was swimming
You won’t feel happy at school ______ you get on well with your classmates.
A. though B. when C. unless D. because
