问题描述：
He loves animals and plans to be a v____ and work in an animal hospital
Let's e____ a volunteer project to help the people who need help
Volunteer work is a major c____
I'd like to help h____ people .You could give out food at a food bank
His sings some happy songs for sick people to c____ them up
Let's e____ a volunteer project to help the people who need help
Volunteer work is a major c____
I'd like to help h____ people .You could give out food at a food bank
His sings some happy songs for sick people to c____ them up
问题解答：
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