4个简单英语句子的语法疑问.一Don't let the children stay up too

4个简单英语句子的语法疑问.一Don't let the children stay up too

(you) Don't let the children stay up too late on weekends,will you?这句说话祈使的对象是you,所以用will you（we） Don't let the children eat a lot of sweets,shall we?祈使对象是we,包括说话人,所以用shall weShe had her hair cut the day before yesterday,didn't she?You had your watch repaired yesterday,hadn't you?结构一样,照理说第二个应该用didn't you 因为两句中的had都是have得一般过去式,反义疑问句应借助助动词didunit nouns单位名词 mass noun物质名词楼主是否明白?======以下答案可供参考======供参考答案1:3.mass noun是物质名词，unit noun是表计量单位的那种词供参考答案2:1的话你就太勉强了。你想：第1句话。说话的人没有帮自己的主观意念放进去。用WILL YOU。难道不行吗？而第2句话。是争对大家（包括自己）说的。用SHALL WE 。也就是说。如果是完形，应该结合语境，我们老师经常说。然后第2小句貌似错了。哪有watch repaired，加HAD ，3个动词一个句？供参考答案3:一。Don't let the children stay up too late on weekends, will you?(说话的人不包括在内，你们不会……，是吗？）Don't let the children eat a lot of sweets,shall we?（说话人包括在内。我们不会……。是吗？）和let's...,shall we?let us.../will you 一样的道理二、She had her hair cut the day before yesterday,didn't she?（正确)You had your watch repaired yesterday,hadn't you?(错误，应用didn't you)

这个解释是对的