11页10.How is my mother ,doctor she is fine ,she went to bed at ten last night and now she ----for eight hours A.had slept B.has slept C.had been asleep 理由
问题描述：
11页10.How is my mother ,doctor she is fine ,she went to bed at ten last night and now she ----for eight hours
A.had slept B.has slept C.had been asleep 理由
答
B
显然,截止到现在为止,所以是现在完成时.
也可以用现在完成进行时.