---You effort is sure to pay __________---Thank you for you encouragement.A．offB_刷题宝

题干

---You effort is sure to pay __________
---Thank you for you encouragement.

A．off

B．back

C． for

D．down

上一题下一题 0.64难度单项选择更新时间:2012-08-08 05:39:30

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