In order to know those who really need help as well as how to help them, to help others.
A. going
B. to go
C. gone
D. go
网友回答
A. going
B. to go
C. gone
(答案→)D. go
解析：
这题考查祈使句的用法，句意是：为了知道真正需要帮助的人，并且怎么帮助他们，去帮助 别人吧。In order to do是目的状语，所以后面应该是个句子，going/to go/gone都是非谓语，只有D项合适。