2. 外语
  3. Acute hearing helps most animals sense the approach of thunderstorms long before people ______.[2000]

Acute hearing helps most animals sense the approach of thunderstorms long before people ______.[2000]

admin2013-12-16  55
问题 Acute hearing helps most animals sense the approach of thunderstorms long before people ______.[2000]
选项 A、do
B、hear
C、do them
D、hearing it
答案A
解析 在before引导的时间状语从句中使用助动词do来代替sense the approach of thunderstorms，故选项A正确。
转载请注明原文地址:https://kaotiyun.com/show/eRFK777K
0

专业英语四级

相关试题推荐
随机试题
最新回复(0)