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，并在答题卡上将该项涂黑。
21._____ we were worried about was _______ they could manage to control the pollution.
A. That; how B. That; whether C. What; that D. What; whether
22. ---Are all telephone numbers_______ in the directory?
--- Yes, all ________ Jane’s.
A. listed; including B. listed; included
C. including; includes D. being listed; being included
