______ our time to help unlucky people _____ a good way to spend ou free time.A.Volunteer,is B Volunteers,are C.Volunteering,is D.Volunteering,are

______ our time to help unlucky people _____ a good way to spend ou free time.A.Volunteer,is B Volunteers,are C.Volunteering,is D.Volunteering,are
______ our time to help unlucky people _____ a good way to spend ou free time.
A.Volunteer,is B Volunteers,are C.Volunteering,is D.Volunteering,are

______ our time to help unlucky people _____ a good way to spend ou free time.A.Volunteer,is B Volunteers,are C.Volunteering,is D.Volunteering,are
C
动名词作主语,谓语动词用第三人称单数
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