I met my fater at the school gate yesterday .改为强调主语、时间、地点的强调句

问题描述:

I met my fater at the school gate yesterday .改为强调主语、时间、地点的强调句

强调主语:It was I who met my father at the school gate yesterday.
时间:It was yesterday that I met my father at the school gate.
地点:It was at the school gate that I met my father yesterday.