Now all we have to do is help ourselves and to pray to God.

此句有语法上的错误吗?为何help前不加to,假如照不加to的理解来看,它and后面为何又加了to,这是什么语法常识,我才疏学浅,请老师帮助一下,谢谢。

        假如主语部分含有动词  do 的某种形式,作表语的不定式可以不加to,也可以加to。所以,网友的句子是正确的:Now all we have to do is help ourselves and to pray to God.