求英文作句

Have you seen the doctor? (seen系see既PP)你看过医生吗?
I have never been to Beijing. (been 系be既PP)我从未去过北京.

Why Mary join the Music Club?(Why系6W之一, Mary系subject, join 系verb) 为什么玛莉会参加音乐学会呢?
How can Lily draw without color pens?(How系6W之一, Susan系subject, draw系verb) 没有了画笔,莉莉怎样画画呢?

1. J.K. Rowling has written 7 Harry Potter Books.
2. We went shopping after the rain has stopped.
3. Why do you scowl at me like that? Have I done anything wrong?
4. Where is your new pencil, John? Don't tell me you lost it again.

p.s. I am in Set A English. you can count on me. =)