一道关于不定式的题
问题描述：
一道关于不定式的题
He spoke in such a high voice________at the farther end of the room.
A.as to be heard
B.to be heard
C.as to hear
D.to hear
那为什么不选B呢？
答
C
such + 名词+ as to do如此.以致于
so+形容词+as to do