Visitors to the hills are greeted by signs them to look out.A．warnB．to w_刷题宝

题干

Visitors to the hills are greeted by signs them to look out.

A．warn

B．to warn

C．warning

D．warned

上一题下一题 0.64难度单项选择更新时间:2014-02-21 06:06:08

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