When I visited the city of Rome，I found the buildings，squares and parks _____________in very different styles．A.to be designed and builtB.to design and buildC.designed and builtD.designing and building
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C解析试题分析：句意：当我去参观罗马时，我发现许多建筑，广场和公园都被设计成不同的风格。这里buildings，squares and parks与design and build是被动关系，又因为动词不定式的被动式表示将要被设计成，根据句意不符合语境，故排除A，故选C。
考点：考查非谓语动词的用法。
点评：本题难度适中。非谓语动词是高中阶段的难点之一，本题是对已学知识点的回顾，需要考生能够理解该题的语言环境，进而作出正确的判断。
即学即练：I feel upset，for there are so many troublesome problems __________.
A. remaining to settle B. remained to settle
C. remaining to be settled D. remained to be settled
解析：C。句意:考查现在分词作定语，修饰problems，意为：我很失望，因为有这么多的麻烦事要解决。