改错。每句话都有一处错误,改正过来并把正确的句子写在横线上。
1. How many line make a triangle?
___________________________________________________________
2. Mr. Wood teach us English.
___________________________________________________________
3. There is five pencils in my pencil-box.
___________________________________________________________
4. It's a umbrella.
___________________________________________________________
5. Time to school.
___________________________________________________________