陈述句语序一I do not know when he will come back.二I do not know when will he come back.哪个对?

问题描述:

陈述句语序一I do not know when he will come back.二I do not know when will he come back.哪个对?

第一个对.因为这里是宾语从句,所以要用陈述语序.