Réponse :
Bonjour,
1. Europeans brought new animals into America in the 17th century,
more than four centuries ago.
2. The Canadian Maple flag appeared in 1965, ....
more than fifty years ago.
3. Canada organized the Olympic Games in hetMontreal in 1976, ....
more than forty years ago.
4. The first Canadiansubway line opened inToronto in 1954, ....
more than sixty years ago.
5. The first submarines arrived in Canada in 1914, ....
more than a hundred years ago.
6. The first Canadian satellite went into space in 1962,
more than fifty years ago / more than half a century ago.
