While John ________ the museum , he saw his classmate. A. is visiting B. visited C. was visiting
2022-11-13 12:43:12 81次 山东省威海经济技术开发区2016-2017学年八年级（五四学制）下学期期中考试英语试卷 单项填空 反馈错误 加入收藏 正确率 : 100%
题目内容：
While John ________ the museum , he saw his classmate.
A. is visiting B. visited C. was visiting
本题链接：
