why this was so 这是什么结构?

why this was so 这是什么结构? Why was this so? 为什么如此吃惊?这意思吗? Jeremy asked her why this was so he asked her why this was so变直接引语 why was mr.li so happy this morning? 这句话有省略词吗?Jereny asked her why this was so and she told him t the (r )why I bought this sweater was that it was so cheap Jeremy asked her why this was so and she told him that she d Jeremy asked her why this was so.这里的so代指上面的事,2.but doctor re the only way to do this was to operate.这里的this 怎样理解,这句话是什么结构 Tom was so careless这句话是主系表结构吗? Why do you know the boy are running so fast 这句话的结构