Question

It wasn’t until dark _________ he found _________ he thought was the correct way to solve the problem.

A．when , that

B．that , that

C．when , what

D．that , what

Answer 1

D

解析试题分析:句意：直到天黑他才找出他认为正确的解决问题的方法。根据结构可知第一个空是强调句型，特点去掉it was……that 句子意思完整，通顺，排除A、C选项；第二个空是宾语从句的引导词，从句中缺少主语，that引导宾语从句不做成分，所以答案选D。
考点：考查强调句型和名词性从句。