 | ,10:你知道昨天晚上7点半你爸爸和你妈妈在客厅里做什么呢吗?Do you know your father and mother were doing in the living room at half past 7 yesterday?这是孙老师给的答案,但我觉得应该是Do you know what your father and mother were doing in the living room at half past 7 yesterday?11:那个医生告诉我他临时在这个医院帮忙。The doctor told me that he is helping in the hospital.这句我觉得从句应该用过去时啊?
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