a) The behaviour of the french pupils is rebellious defiant, cheeky and unrespectful as they make mischief with ink.

b) Their clothing is completely stained with ink, making their aprons to look dirty.

c) They act rebellious towards the punishements, as they laugh and don't take it seriously.

2. a The maps on the walls where torn off, and looked like if the paper was nibbled away by mice.

   b.The school seemed to be in lack of power and leadership which should be applied by the teachers. Besides, the surroundings looked careless and dirty.

3. c: that the countryside is lifeless

   4.a. This sentence is the one written by a child in the nineteenth century, because the vocabulary expects to be more respectful and more extended.

   b) This sentence is the one written by a child nowadays because "shut up" is a more unrespectful,informal and "modern" way to express the action of doing silence.