THE CHARITY ORGANIZATION MANY PEOPLE CONTRIBUTE MONEY TO( ) TO SUPPORT HOMELESS PEOPLE WITH FOOD.

题目

THE CHARITY ORGANIZATION MANY PEOPLE CONTRIBUTE MONEY TO( ) TO SUPPORT HOMELESS PEOPLE WITH FOOD.
a HELPING
b HELP
c HELPS
d HAVE HELPED
正确答案是C,但我不知道为什么

答案

这题目应该还缺一个地点状语吧,正确的题应该是 The charity organization where many paople contribute money to ()to supprot homeless people with food.因为这句话的真正主语是
the charity organization ,是单数,所以用单三