问题补充:
Tom was that he couldn’t understand difficult sentence.
A. so a stupid boy; such
B. a so stupid boy; a such
C. so stupid a boy; a such
D. so stupid a boy; such a
答案:
A. so a stupid boy; such
B. a so stupid boy; a such
C. so stupid a boy; a such
(答案→)D. so stupid a boy; such a
解析:本题考查状语从句。so和such用法分别为:so+形容词+(a/an)+名词,such a/an +形容词+名词,故选D。