The H7N9 flu is reported ______ higher fever and coughing for several days.A.taking the form ofB.to take the form ofC.to be taken the form ofD.having taken the form of
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B解析试题分析：句意: 据报道H7N9病毒的症状是连续几天的高烧和咳嗽。sth be reported to do sth据报道，这是固定句型，这里take the form of与the H7N9 flu之间是主动关系，故选B。考点：考查非谓语动词的用法。
点评：本题难度适中。主要考查的是非谓语的一些最基本的用法。但是，题目的设置注重了情景化和结构复杂化，加大了考生对题干句的理解难度。设问的角度呈现出多样化趋势，不仅仅是非谓语间的互相干扰。即学即练：You should understand the traffic rule by now． You’ve had it_______ often enough.A． explaining B． to explain C． explain D． explained解析：D。句意：你应该到现在为止理解交规了，你已经让别人解释多次了。