第二部分：知识运用（共两节，45分）
第一节单项填空（共15小题；每小题1分，共15分）
从每题所给的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：It’s so nice to hear from her again. ______, we last met more than thirty years ago.
A. What’s more B. That’s to say
C. In other words D. Believe it or not
答案是D。
21. He raised his voice, ______ we still couldn’t hear anything.
A. so B. or C. but D. as
