He spoke quickly I couldn’t understand a word he was saying. A. such; thatB. so; that C.

问题补充：

He spoke quickly I couldn’t understand a word he was saying.

A. such; that

B. so; that

C. too; to

D. quite; that

答案：

A. such; that

(答案→)B. so; that

C. too; to

D. quite; that

解析：考查so….that….句型，句意：他说话是如此快，以至于我不能理解他说的一个字。So+adj/adv…that…. 句型“如此…以至于…”,such后面修饰名词， too+adj+to…太…而不能…，后面不能接从句，应该接动词，quite后面不和that搭配，选B。