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A、B、C、D 四个选项中，选出可以填入空白处的最佳选项。
21．The children were surprised by the sudden _____ of their teacher．
A．enter B．entrance C．entry D．come
22．Soon , Mary _____ the shock and became calm again.
A．recovered B．recovered from C．affected D．covered from
