When I talked with my grandma on the phone,...we_up,her voice had been full of life.When I talked with my grandma on the phone,she sounded weak,but by the time we__up,her voice had been full of life.A.were hanging B.had hung C.hung D.would hang Thank

When I talked with my grandma on the phone,...we_up,her voice had been full of life.When I talked with my grandma on the phone,she sounded weak,but by the time we__up,her voice had been full of life.A.were hanging B.had hung C.hung D.would hang Thank
When I talked with my grandma on the phone,...we_up,her voice had been full of life.
When I talked with my grandma on the phone,she sounded weak,but by the time we__up,her voice had been full of life.A.were hanging B.had hung C.hung D.would hang Thanks.

When I talked with my grandma on the phone,...we_up,her voice had been full of life.When I talked with my grandma on the phone,she sounded weak,but by the time we__up,her voice had been full of life.A.were hanging B.had hung C.hung D.would hang Thank
这题简单了.选C.首先,hang是一个短暂动词,A的进行时首先排除.第二,by the time we_ up,这个句子是一个时间状语从句,表过去的某一个时间点,用一般过去时,意思是,到了我们挂机的时候.
整个句子的意思就是：当我跟奶奶在电话上聊的时候,她听起来很虚弱.但到了我们挂机的时候,她的声音已经充满了活力.可见,挂机是过去发生的一个动作,是作为过去时刻的某个参照点,适用一般过去时.

通常引导一个时间状语从句，表示“到……的时候”
主句则表示在此时间之前某个事件已完成。
当从句用过去时时，主句通常用过去完成时。
各么这个主句不就是完成时么`

we fucked up，这么填

C 2009年北京市的高考题吧……呵呵