a computer is so useful a machine( )we can use everywhere
a computer is so useful a machine( )we can use everywhere A that B whiche C as D what 解释是因为so useful的原因,WHY? THE car ran into a crowd of middle school students,( )to hospital immediately 答案是two of them sent 说要考虑定语和状语的区别 为何不能用two of whom are sent