Kate is good at .
A.cook and washing
B.cooking and to wash
C.cooking and washing
D.to cook and to wash
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C解析试题分析:be good at doing,and表示两个动作并列,所以都要用doing故选C考点:be good at doing擅长做某事点评 :本题考查的是学生掌握固定词组的搭配,所以平时识记相应的动词词组,be good at 就是一个固定短语,有时还会在完型中考查at这个介词。