2. 专升本
  3. _______ pollution is the key to _______ the country a comfortable and clean place to live in.

_______ pollution is the key to _______ the country a comfortable and clean place to live in.

admin2017-03-21  40
问题 _______ pollution is the key to _______ the country a comfortable and clean place to live in.
选项 A、To control; keep
B、To control; keeping
C、Control; keeping
D、Controlling; keep
答案B
解析 考查非谓语动词。不定式短语作主语表目的；the key to(doing)sth．指“(做)某事的关键之处”，to为介词，后跟V—ing形式。句意为：“如果一个国家想拥有一个舒适干净的居住环境，控制污染是关键。”故选B项。
转载请注明原文地址:https://kaotiyun.com/show/WDXC777K
本试题收录于： 英语题库普高专升本分类
0

英语

普高专升本

相关试题推荐
随机试题
最新回复(0)