第二部分：词汇知识运用（共两节，满分40分）
第一节：多项选择（共10小题；每小题1分，满分10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. There’s some evidence that the health of some Americans has ______ as a result of acquiring unhealthy, stress-leading habits.
A. denied B. ignored C. decreased D. declined
22. The reporter said that the survivors greatly ______ the firefighters’ rescue after the big fire.
A. charged B. appreciated C. harmed D. solved
23. His way of speaking shows that he didn’t ______ the plan. Anyhow, he didn’t want to have his real voice heard.
