—Mr. Hu, can you tell us how to learn swimming well? —Sure. But remember we can learn nothing well _______ hard work. A. with B. after C. without
—Listen!Who________the piano? —My sister.
To be a policeman is interesting________sometimes it’s kind of dangerous.
—I’ve shown you all the interesting and important places of our school. —Thank you for________so much time.
________energy,turn off the hot water after you take a shower.
—Did they clean the house yesterday? —________,They cleaned at five o’clock.