Correct the mistake in each sentence.

1. She hasn't to tidy her room.

   
   
   Check Hint

2. I don't have to write on the walls.

   
   
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3. You definitely will burn yourself if you touch the fire.

   
   
   Check Hint

4. He must to be hot in here.

   
   
   Check Hint

5. I didn't can swim when I was 6.

   
   
   Check Hint