Tom was ______ that he couldn’t understand ______ difficult sentence
A.so a stupid boy; suchB.a so stupid boy; a suchC.so stupid a boy; a suchD.so stupid a boy; such a在线课程D
试题分析：句意：汤姆是那么头脑糊涂，他不能理解如此难的句子。such+adj.+不可数名词+that…，such+a+adj.单数名词+that…, so+adj.+that…,so+adj.+a+单数名词+that…。由此可知选D。
考点: 考查so, such的用法。