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题型：单选题 题类：常考题 难易度：容易
新目标九年级上同步优化训练Unit 10 You'resupposed to shake hands. Section B
It's too hot in the room. You'd better {#blank#}1{#/blank#} {#blank#}2{#/blank#} your coat.
It is {#blank#}1{#/blank#} to keep others {#blank#}2{#/blank#}.
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