Mary finished school 10 years ago.(past simple)He has written a letter and now he is going to send it.Last weekend they went to the sea.When you came?(тут не очень уверен).I didn't decided yet where to go this weekend.John left his bag in the library last Monday.Harry and Jane have bought new TV set and now are enjoying a film.His grandfather died when he was a child.Clara has been never abroad.(тут тоже немного не уверен)John didn't arrived yet.
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