He was punished.That was___He had broke the window of the classroom

题目

He was punished.That was___He had broke the window of the classroom
A that B becase C when D why(选择后请帮忙分析一下问什么选B而不选D？）

答案

要选B,因为这段话是用两句话组成,是用句号隔开的.两个并列的句子,没有从属关系.故要用because,而如果是用逗号隔开代表一句话,那么why所引导的就是前面那句,就是我们所说的先行词