Have you had lunch yet?

Have you had lunch yet? Have you had your lunch yet? i have alreay had my lunch 【】you [ ]your lunch [ have you had your lunch yet 和 did you have your lunch yet的区别 Do you have lunch和Have you had lunch一样吗?什么区别? 改错：where have you had your lunch yesterday? I have had lunch at school.对at school提问可不可以填where have you had lunch? Have you had your lunch?为什么用have提问,中间的had又是什么意思 Have you had ( )Lunch?--yes,i had( )good dinner at my friend's house,too Have you had lunch time?为什么用had不用原型呢? 如果一个英国人告诉我I have had lunch at school,我可不可以这么问：where did you have lunch?说错了，英国人说是I have had lunch 我问的是where did you have lunch？ Did you have lunch? do you have lunch ( ) you have for lunch? do you have lunch 英语翻译have you had lunch 这是什么时态这里的had是什么意思 have过去式和过去分词是什么 Have you had your lunch?--Yes,l ( ) it at 11:45(适当形式填空） what do you have for lunch ---We had beef and potatoes.怎样改错?