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Acute hearing helps most animals sense the approach of thunderstorms long before
Acute hearing helps most animals sense the approach of thunderstorms long before
游客
2024-09-06
5
管理
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
动词的替代。空格位于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,因此为避免重复由动词do替代。
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