1 . 没有人陪伴，她开始在网上聊天来打发时间。(汉译英)
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2 . 玛丽把不需要的物品收拾起来，为上课作准备。(put) (汉译英)
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3 . 如果你身陷火灾，用湿毛巾捂住口鼻来确保呼吸顺畅。 (ensure) (汉译英)
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4 . 赵医生挎着药箱匆匆去护理那个人了。(with的复合结构作状语)
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5 . Before the manned mission, the Tianzhou-4 robotic cargo spaceship will lift off in May _____________ (transport) supplies, experimental materials and fuel to the Tiangong station. (所给词的适当形式填空)

6 . _____________ (address) the problems, Yan improved Dai’s papermaking technology, thus saving production time and reducing labor costs.(所给词的适当形式填空)

7 . 为了射中目标，必须集中注意力，并瞄准它。(target; aim)(汉译英)

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9 . 当地政府已经发起了一项活动来促进垃圾分类。(campaign)(汉译英)

10 . 他满心遗憾地看着他的家被拆除，让位给新的购物中心。
With great sorrow, he watched his home being torn down to______________________the new shopping center.