Polite words

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Across
  1. 2. -- To use something for a bit and give it back
  2. 4. -- Stood up on your feet
  3. 5. -- The room where you sit and learn at school
  4. 7. -- A reason you give when you do something wrong
  5. 8. -- Someone you love very much
Down
  1. 1. -- A loud or disturbing sound
  2. 3. -- Feeling very sad or unhappy
  3. 5. -- A group of students learning together in school
  4. 6. -- Being friendly and enjoying time with others