Mary is always ready to do some __ work at the local geracomium（敬老院）in her spare

题干

Mary is always ready to do some __ work at the local geracomium（敬老院）in her spare time.

A．responsible

B． exhausting

C．voluntary

D．professional

上一题下一题 0.85难度单项选择更新时间:2011-10-24 10:39:22

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