How many boys are there in our class?I wanted to know.间接引语How many boys are there in our class?I wanted to know.变为间接引语.

这里要把握两点:一是间接引用，句子中的人称代词要变化，二是语气，即是把两个简单的句子转换成从句要用陈述语气。把握这两点就不会出错了。转换后是这样的;
He（She） wanted to know how many boys there were in his （her） class.

I wanted to know how many boys there were in your class.

I wanted to know how many boys there were in your class.
our----your ;
宾语从句,后面用陈述语序.

I wanted to know how many boys were there in our class.