It was only in K. Rowling completed the first Harry Potter story, _______ was also known as Harry Potter and the Sorcerer’s Stone.

If prices rise too high, the government has to do something _________ it.

Many of the students in my class go to school _______.[ ]

Our school will play No.4 Middle school .I think we’ll win.Please cheer us .[ ]

I don’t know ___________next. —-You’d better finish your homework first.