My father is usually on _______ duty in his office every _______ few days.A．the；_刷题宝

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My father is usually on _______ duty in his office every _______ few days.

A．the；a

B．/； /

C．/；a

D．a； /

上一题下一题 0.85难度单项选择更新时间:2010-11-22 01:11:15

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