二、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，并在答题卡上将该项涂黑。
例：A computer can only do ______ you have instructed h to do>
A. how B. after C. what D. when
答案是C。
21. It is known to all that _____ you exercise regularly, you won't keep good health.
A. unless B. whenever C. although D. if
22. — Victor certainly cares too much about himself.
— Yes. He’s never interested in what ______ is doing.
A. no one else B. anyone else C. someone else D. nobody else
