Studying nature reserves( ) us learn more adout protecting animal_英语解答

Studying nature reserves( ) us learn more adout protecting animals. A helps B to help C help
则么想的,为什么这样填?请快点告诉答案.

人气：341 ℃　时间：2019-10-23 03:21:34

解答

答案：A
Studying nature reserves 是动词ing形式短语作主语,谓语动词用单数形式.