He always works ()()()on weekends.他总是在周末去当志愿者.(每空一词)
问题描述:
He always works ()()()on weekends.他总是在周末去当志愿者.(每空一词)
答
as a/an 志愿者
He always works ()()()on weekends.他总是在周末去当志愿者.(每空一词)
as a/an 志愿者