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Сложность вопроса:
-If hundreds of satellites (not orbit) the earth, they (not transmit) information.
If hundreds of satellites does not orbit the earth, they do not transmit information.
If hundreds of satellites not orbited the earth, they would not transmit information.
If hundreds of satellites do not orbit the earth, they would not transmit information.
If hundreds of satellites did not orbit the earth, they would not transmit information.