1) The Moscow Institute of Steel and alloys Graduates get jobs in any part of our country.
2)I am very interested in meeting Prof.Green.
3)Oxygen is necessary for plants and people.
4)I wont to masler English.
Первое проверьте
2-Who is interested in meeting Professor Green?
3-What is necessary for plants and people?
4-Who wants to master English?
1) Who gets jobs in any part of our country?
Здесь подлежащее, вернее группа подлежащего - The Moscow Institute of Steel and alloys Graduates - выпускники Московского института стали и сплавов. Только почему-то Graduates - выпускники с большой буквы.
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