1) If the Internet hadn´t existed,  a) people wouldn’t have been able to take online classes. b) people wouldn’t be able to take online classes. c) people wouldn’t have be able to take online classes. 2) Navigators wouldn´t have travelled many kilometers, a) if the Compass hadn´t had invented. b) if the Compass hasn´t been invented. c) if the Compass hadn´t been invented. 3) If Tim Berners-Lee hadn’t created the WWW, a) It will be impossible to get access to information so easily and quickly. b) it would have been impossible to get access to information so easily and quickly. c) it would had been impossible to get access to information so easily and quickly. 4) Teenagers wouldn’t have spent so many hours using the phone, a) if social networking sites hadn’t been created. b) if social networking sites haven’t been created. c) if social networking sites hadn’t created. 5) If people had discovered the Compass before, a) history would had been different, b) history would have be different. c) history would have been different,

Third conditional

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