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，并在答题卡上将该项涂黑。
21. Don’t worry too much about making ____ mistakes. They are _____ natural part of learning.
A. /; a B. the; / C. /; the D. the; the
22. Tom was very sick with a bad cough, ______ he could neither eat nor sleep.
A. as a result B. after all
C. anyway D. otherwise
