I. 单项选择。（每小题1分，共15分）
( ) 1. Some men saw what was happening and __________ to fight the fire.
A. rushed B. walked
C. jumped D. hiked
( ) 2. At 19, Mark came up _______ a new way for college students. Now 23, he’s trying not to lose its cool.
A. with B. to
C. like D. as
( ) 3. — What _______ you, science, math or physics?
— Science. I liked it very much.
A. troubled B. shocked
C. interested D. hurt
