We should set up some shelters the homeless people. A. help B. helping C. helped D. to hel

问题补充：

We should set up some shelters the homeless people.

A. help

B. helping

C. helped

D. to help

答案：

A. help

B. helping

C. helped

(答案→)D. to help

解析：句意：我们应该建一些避难所来帮助无家可归的人。此题考查不定式做目的状语，建避难所的目的是帮助无家可归的人，故选D。