I had lunch at school yesterday改为一般疑问句

I had lunch at school yesterday改为一般疑问句 I had lunch at half past twelve 是不是主系表结构? I have had lunch at school.对at school提问可不可以填where have you had lunch? After i had had lunch at a village pub,这里的两个had是什么用法 I work hard at schoo 和 At school Iwork hard I have had lunch at home 改否定句I _____ _____ at home. Have you had ( )Lunch?--yes,i had( )good dinner at my friend's house,too Afer I had had lunch at a village pub.什么语法 After I had had lunch at a village pub.用的是什么语法 I have had lunch at school.对at school提问特殊疑问句 英语语法：After I had had lunch at a village pub,I l英语语法：After I had had lunch at a village pub,I looked for my bag.句中为什么要用两个had? after I had had lunch at a village pub为什么有两个had?请详细解释,谢谢! His father had lunch at home yesterday,so did_(I)填写?为什么? 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？ They had lunch at twelve.变疑问句, I have lunch at 12. I have had lunch at school 对have had提问回答的在洛克王国给糯米蛋蛋包母 i have alreay had my lunch 【】you [ ]your lunch [