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; what D.when; that正确答案A
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; what D.when; that正确答案A
