''He wants to amuse the reader discovering the exchange of identity''''He wants to amuse the reader when he discover the Identyty's exchange''
The writer wants his reader to be amused by discovering a change of identity.
''It usually makes you think about the absurdities'' This is OK.
''This text is about the vicissitude of a woman who meeets his friend on a train''
I'm not sure what you are trying to say here, but I'm sure that "vicissitude" would not be the appropriate word, and that a woman would meet her
friend on a train.
''Even if as a kind of production is short,the short story is very original,so that everybody is able to remember it''
Although it is brief, the short story is original and very memorable.
Student or Learner