_____ are you?—I’m twenty.[ ]

Have you heard_____ Liu Xiang?—Of course. He is one of _____players around the world.[ ]

I have more paper clips than_______, but my CDs are fewer than________.

Your coat looks very nice. What’s it made _______? —Cotton, and it is made _______Wuhan. [ ]

I would like to buy the black pen because I ___ that kind of pen ____ well.