I want to be a volunteer some day. I feel _____ is my duty to help others.A．this_刷题宝

题干

I want to be a volunteer some day. I feel _____ is my duty to help others.

A．this

B．that

C．them

D．it

上一题下一题 0.64难度单项选择更新时间:2012-12-25 01:16:16

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