Question

it was that he (do sth)that …有这个句式么怎么理解

(1/2)原句是it was behind prison bars that he imitated talks with others tha(2/2)t eventually led to the release 怎么感觉两强调句叠一块，这个句式是怎么解释的

Answer 1

（it was） behind prison bars（ that） he imitated talks with others That（引导的是个定语从句） eventually led to the release it was……that 是个强调句式，划去化简可省略。

Answer 2

强调句型 最好给出完整题目