一、单项选择
( ) 1 Wendy likes playing ________ chess, while her brother is interested in playing ________violin.
A. /, the B. the, / C. /, / D. the; the
( ) 2The number of the students in our grade _______about ______and ______ of them are girls.
A. are, six hundreds, two- thirds B. is, six hundred, two- third
C. is, six hundred, two thirds D. are, six hundreds, two third
( ) 3—You look so worried, what’s wrong?
—More and more people like me become to worry about the __________ pollution after the haze (雾霾) appeared in Beijing and some other cities in China.
A. water B. air C. noise D. soil