题目

My aunt _______ drive her car to the factory, but now she _______ going there by bus. A. used to; used to                                       B. is used to; is used to C. used to; is used to                                    D. is used to; used to 答案：C  used to do sth.意为“过去常常做某事”，be used to doing sth.意为“习惯于做某事”。由句意“我姑姑过去常常开车去工厂，但现在她习惯于乘公共汽车去那儿”可知选C。

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