What was she doing while her brother ... ?
How long has he slept?
What subject does his father teach at NH school?
How did he use to go to work?
When did Ann go to Australia to study?
Ex6,
1, What was she doing while her brother was studying?
3, What subject does his father teach at Nam Huong school?
4, How did he use to go to work?
5, When did Ann when to Australia to study?
Ex7
4, I would like to have more some cakes, please.
6, I would like something to drink.
7, Why did Nam make his parents sad?