she (slept) for ten hours at least.It was at nine that she fell asleep last night.我觉得应该用完成时啊,为什么用过去时?
问题描述：
she (slept) for ten hours at least.It was at nine that she fell asleep last night.
我觉得应该用完成时啊,为什么用过去时?
答
其实但就这个句子而言两个都可以，估计看你上下文语境来说。
区别在于如果你说这句话的时候想特别强调她还在睡就用完成时，如果她已经醒了或者一般没想表达她还在睡就是过去时。
答
用完成时的两种情况：1.如果她一直睡到现在还没醒（完成进行时）2.“她睡了10个小时”对现在有影响 比如后面又跟了一句：—no wonder she is so energetic now 难怪她现在如此精力充沛 就应该用完成时 she has slept...