一、单选题(每题1分，共15分)
( )1. In the south of China, some people build their houses ________ the rivers.
A. under B. in C. over D. below
( )2. Jim’s mother was ill ________ for three days.
A. on the bed B. in bed C. in the bed D. on bed
( )3. Which of them isn’t a capital city?
A. Paris B. London C. New York D. Moscow
( )4. There is a beautiful park near my home. I always have fun __ my dog there.
A. at B. with C. on D. for
