Question

Miss Gao asked a question,but it was ___________that nobody could answer it.

A．very difficult	B．too difficult
C．difficult enough	D．so difficult

Answer 1

D

解析试题分析：句意：高老师问了一个问题，但太难了没人能回答它。so ...that...那么……以至于……,是固定句式故选D。
考点：考查连词。