Réponse :

2.

The world Trade Center was attacked twenty (20) years ago.

My neighbours bought their house twenty-six (26) years ago.

One (1) year ago, I went to Canada.

three hundred fifty-five (355) years ago, London was destroyed by a fire.

We had a test five (5) days ago.

John Lennon was assassinated forty-one (41) years ago.

One (1) month ago, I went skiing.

3.

It was one (1) month ago I painted my room in grey.

There is two (2) month of holiday in summer.

I have arrived 5 minutes ago.

There is sixty (60) minutes in one (1) hour.

There is a lot of noise.

The dinosaurs have disappear a long time ago.