It was not until dark _____he found _____he thought was the correct way to solve the problem.
A.that; what B.that ;that C.when; that D.when ;what
It was not until dark _____he found _____he thought was the correct way to solve the problem.
A.that; what B.that ;that C.when; that D.when ;what
A
第一空考查强调句式的that，第二空用what是宾语从句中的主语。