I knew that my turn had come我知道这次该轮到我了!my turn是什么意识

I knew that my turn had come我知道这次该轮到我了!my turn是什么意识 I knew that my turn had come. I knew that my turn had come为什么用knew knew that my turn had come Twenty people had already left .I knew that my turn had come I knew that my turn had come.这句话怎样理解 i knew that my turn had come.这是新概念二上面的一句话,为什么用had+动词原型这个用法? i kenw that my turn had come为什么不用had to ? 改成I know that my turn have come my turn having come round I missed my turn是什么意思 我的心颠倒了my heart turn upside down,错了请帮我指出