一、单项选择(15分)( )1.-How do you study _a test? -I study _reading the textbook. A. for ; for B. for ; by C. by ; for D .by ; by( )2. I dont know _.Can you tell me_? A. how swim; what to do B. how to swim ; what to do it C. how to swim; what to do D. what to swim; how to do( )3. Liu Xiang is one of _ runners in the world. A. famous B. more