To volunteer,I ------ children in the hospital.

cared
1）若以中文理解整个句子来填空,可以用“帮助”、“照顾”、“关心”等
但要求5个字母,用“关心”（cared）就OK了
2）若以英文理解,假如听过一首歌
If Everyone Cared-加拿大乐队Nickelback
其中一句歌词
if everyone cared and nobody cried 如果每个人去关心就没有人会哭泣
if everyone loved and nobody lied 如果每个人去爱就没有人会说谎
if everyone shared and swallowed their pride 如果每个人去分享并且放下他们的骄傲
we'd see the day when nobody died 我们就可以看到没有人死去的那天了
就会直接浮现出对待医院的小孩子那种在意、关心的感情,cared就自己蹦出来了