Bonjour je ne comprends pas cette exercice pouvez-vous m’aider svp merci beaucoup d’avance

Bonjour

LES PRONOMS RELATIFS

1- It's a wonderful book which tells  the story of Charlie Chaplin.

2- Thank you for the book that you gave me.

3- Our train is the train which leaves from platform 5.

4- Mrs Hamilton is the teacher whom / ou / that you saw at the station.

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bonne soirée ☺☺☺