2. 外语
  3. Acute hearing helps most animals sense the approach of thunderstorms long before people______.

Acute hearing helps most animals sense the approach of thunderstorms long before people______.

admin2018-09-15  43
问题 Acute hearing helps most animals  sense the approach of thunderstorms long before people______.
选项 A、do
B、hear
C、do them
D、hearing it
答案A
解析 本题由before引导的从句中，people的谓语与主句中宾语animals的补语动词(sense)相同，因此为避免重复由助动词do替代。
转载请注明原文地址:https://kaotiyun.com/show/1exK777K
0

专业英语四级

相关试题推荐
随机试题
最新回复(0)