Mary by the lake when a black cat ran past her.A. satB. has satC. was sittingD. sits
Mary by the lake when a black cat ran past her.A. satB. has satC. was sittingD. sits
发布时间：2020-08-22 13:22:30
Mary by the lake when a black cat ran past her. A. sat B. has sat C. was sitting D. sits
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A. sat B. has sat (答案→)C. was sitting D. sits 解析：此题重点考查过去进行时的基本用法，表示在过去某个时刻正在进行的动作或存在的某种状态。根据语境可知此句的含义一只黑猫跑过其身边的时候Mary正坐在小湖边。故用过去进行时。过去进行时的基本构成是was或were+ving，故选C。