第二部分：知识运用（共两节, 45分）
第一节：单项填空（共15小题，每小题1分，满分15分）
从A、B、C、D四个选项中，选出可以填入空白处的最佳选项。
21．More than five doctors and rescuers have got to Yushu County up to now.
A．thousand B．thousands C．thousand of D．thousands of
22．When I got New York, I had to attend a school for students first language was not English.
A．who B．which C．whose D．where
