改句子:1.We must arive at school (before 7:30)对括号里提问

1个回答

  • When must we arrvie at school?

    You can't walk on the grass.

    How are the children flying a kite on the playground?

    What does Peter usually do in the bathroom?

    When did people start to use fire?No one knows,but we know it was a long time ago.Some people say it was about 200,000 years ago.Other people say it was 1,000,000 years ago.Fire was useful then and fire is useful now.Fire was a great thing.It changed our future but fire can aslo be very dangerous.Don't play with fire and when you see a fire.You should be careful.