We eat lunch at school. 对at school提问
Where do we/you eat lunch?
Dave's sister usually goes to school at 7:00.对goes to school提问
What does Dave's sister do at 7:00?
Li Lei does her homework after school.改为否定句
Li Lei doesn't do her homework after school.
My mother after eats lunch at 12:00.对12:00提问
When does your mother often eat lunch?
T have some good friends at school. 改为一般疑问句
Do you have some good friend at school?