您好!
就是
特殊疑问词+ is/was+ it + that,后面的不用改。
举个例子:Jim met his good friend last night on the street.
对这句话变换
强调Jim的: Who was it that met his good friend last night on the street ?
强调friend的:Whom was it that Jim met last night on the street ?
强调last night的:When was it that Jim met his good friend on the street ?
强调on the street 的:Where was it that Jim met his good friend last night ?
望您采纳,谢谢您的支持!