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题型：单选题 题类：常考题 难易度：容易
黑龙江省大庆市第五十一中学 2016届九年级下学期英语期中测试
— But nobody knows if it ______.
— Yes, but it's dangerous. One can't do it ____ he or she has got some training.
—I see. I him up in 10 minutes.
{#blank#}1{#/blank#} we {#blank#}2{#/blank#} hurry, we'll be late for the bus.
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