go to schoo
你好，因为划线部分是go to school（去学校物嫌），所以对它（罩御手go to school）提问应该用what(什么）
所以问句是：
What do your two sons have to do at seven o'clock every day?
句子翻译是：你的两个儿子每天七点必须干什么？
have to：不得拆宽不，必须 every day：每天 at seven o'clock：七点钟
希望对您有用，祝你开心
望采纳谢谢
What do your two sons have to do at seven o'clock every day?
希望能帮到你备蠢！ (*^__^*)
不明白的再问哟仿扒陪，请及时采此羡纳，多谢！
为闭竖您解答。
提问：What do your two sons have to do at seven o'clock every day?
句意穗态岁：你猜睁的两个儿子每天七点必须做什么？