15. He was almost asleep, ________ with all this hard work.

　　A. worn down B. worn out

　　C. worn off

　　D. worn away【解析】选B。句意: 他干了这么多重活儿, 累得精疲力竭, 差不多睡着了。wear out“使疲乏; 使厌倦; 使耗尽”; wear down“使消瘦, 使厌烦”; wear off“渐渐减少; 消逝”; wear away“消磨, 打发, 虚度; (时光等)流逝”。

　　. 完形填空

　　Cindy Sydney is the founder of C&S Paving Inc. (铺路公司)in Miami, USA. In the following account, she recalls the job that challenged her　1　and skill but left her flying high.

　　When the Miami Airport was under　2　in 1979, we were a new company struggling to make it. National Car Rental wanted to have 2, 500 square meters of dirt paved　3　the cars could be on site　4　the airport opened, and the official opening was only ten days away! 　5　other local paving company wanted to do the job, stating it couldn’t be done in such a　6　time.

　　Because we were new and really needed the work, we were　7　to try harder. We gave National Car Rental our offer and　8　our best effort to get the job finished within ten days. We also　9　them that if we failed, they would be no worse off, 　10　they had plenty to gain if we succeeded.

　　We got the job and immediately went into　11　. Working at night needed lights, so I rented a machine to produce electricity for the site. Our　12　challenge was to keep the rock mixture　13　enough. All the available water wagons(洒水车)were rented out for the airport construction, and we certainly couldn’t　14　to buy a new one. Instead, I got a special　15　to rent fire engine hoses(消防水龙带)and connect them to nearby hydrant(消防栓); then I　16　held one of those hoses to　17　down the rock.

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