强调句型 It is was ..that 什么时候用is 什么时候用was 举个例子

这个市强调句型的一般句式
在过去式和过去完成时用WAS
在一般现在时和将来时或者现在完成时用IS
值得注意的是 将来时和完成时一般体现在主句的助动词形式 比如WILL和HAVE DONE

扩展阅读：it+was+that强调句 ... it is that 强调句用法 ... it is adj for sb to do ... it is who 强调句用法 ... 强调句把it is that去掉 ... it wasnt until that ... there is no denying that ... it is that 万能强调句 ... 强调句句型do does ...