It gave me quite a shock to be told I was seriously ill.为什么to be told前面为什么不加i was
问题描述：
It gave me quite a shock to be told I was seriously ill.为什么to be told前面为什么不加i was
怎么理解这个句子结构
答
【主It】【谓 gave】【间接宾语 me】 quite 【直接宾语a shock】【宾补 to be told I was seriously ill】
这个知识点是动词不定式作宾语补足语.
例如：I tell you to buy it .