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)
从所给A、B、C、D四个选项中，选出可以填入空白处的最佳选项，井在答题卡上将该项涂黑．
21．He was the last student _______ the top of the hill.
A. reaching B. to reach C. reaching on D. to reach at
22.Now more and more people are studying English _____distance learning.
A. through B. with C. on D. by
