第二部分：英语知识运用(共两节，满分45分)
第一节：单项填空(共15小题；每小题1分，满分15分)
21．Some people fear that air pollution may bring about changes in weather
around the world．
A．／：the B．the；／ C． an；the D．the：a
22．Nine in ten parents said there were significant differences in their approach to educating their
children compared with of their parents．
A．those B one C．both D．that
