Ответ:

Monaco is a country on the Mediterranean coast. (Missing article "the" before "Mediterranean")

Australia is the smallest continent. (Incorrect use of "the" before "Australia")

Caribbean Islands were bought from Denmark in 1917. (Incorrect use of "the" before "Denmark")

New York City is situated on the Hudson River. (Incorrect use of "the" before "New York City")

The capital of the Republic of San Marino is San Marino. (Missing article "the" before "Republic")

The biggest ocean in the world is the Pacific Ocean. (Missing article "the" before "Pacific Ocean")

Bermuda is in the Atlantic Ocean. (Incorrect use of "are" instead of "is")

The capital of the Netherlands is Amsterdam. (Correct)

You must go to the Alps for skiing. (Incorrect use of "come" instead of "go")

The Amazon is a river in South America. (Missing article "the" before "Amazon" and "South America" should be written as one word)

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