第二部分 英语知识运用（共两节, 满分35分）
第一节 单项选择（共15小题，每小题1分，满分15分）
请认真阅读下面各题，从题中所给的A、B、C、D四个选项中，选出最佳选项,并在答题卡上将该项涂黑。
21．“A Red，Red Rose”，_____romantic poem，is written by Robert Bums，quite a few of whose
works are involved in _______ nature．
A．a，the B．the，the C．a，／ D．the，／
22．一You’ve made great progress in your survey, haven’t you?
——Yes，but some problems among the youngsters still remain_______．
A．settled B．settling C．to settle D．to be settled
