请判断句子对错Do you know what kinds of food dolphins eat do?这个宾语从句有错吗,如果有请改正,

请判断句子对错Do you know what kinds of food dolphins eat do?这个宾语从句有错吗,如果有请改正,
请判断句子对错
Do you know what kinds of food dolphins eat do?这个宾语从句有错吗,如果有请改正,

请判断句子对错Do you know what kinds of food dolphins eat do?这个宾语从句有错吗,如果有请改正,
把最后的do去了

Do you know what kinds of food dolphins eat ？