Mary liked to look back on her high—school days， she thought were the happiest in her life． A．that B...
2023-01-18 13:28:47 91次 2010-2011学年河北省石家庄市高三第二次模拟考试英语试题 单项填空 反馈错误 加入收藏 正确率 : 100%
题目内容：
Mary liked to look back on her high—school
days，
she thought were the happiest in her life．
A．that B．what C．which D．when
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