Réponse :

Bonjour,

Mr Mckay is a globe trotter: he has travelled a lot. He has already been to several continents: he has visited England, France, Chile, Kenya, Australia but he has never worked in India and China.

Mary has taken the Canadian pacific railway to go on a  school trip with her class. They have met Inuit people. They have eaten Inuit food but they haven’t drunk Inuit blood soup.

Explications :

Present Perfect

Forme affirmative = sujet + has/have + participe passé

attention à la place des adverbes de fréquence ( never/ already ...)  ils se placent entre has/have et le participe passé

Forme négative = sujet + has not (= hasn't)/ have not ( =haven't ) + participe passé.

Participe passé verbes réguliers = base verbale + ed

exemple :  visit ----> visited

Participe passé verbes irréguliers = 3ème colonne des verbes irréguliers

exemple : drink ----> drunk