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МатематикаВопрос:
If he (7)_______ (HAVE) not been so curious about sound, the human communication would have been completely different.
Ответ:
7. had — используется форма 'had not been' для образования условного предложения третьего типа (нереальное условие в прошлом).
Похожие
- Alexander Graham Bell is known as the man who (1)_______ telephone.
- However, few people realise that he was a (2)_______ (DEDICATE) teach deaf before that.
- Bell's mother and wife were both deaf, which (3)_______ (INSPIRE) him sound and speech.
- On 10 March 1876, the first successful telephone experiment (4)_______ place. Bell spoke the famous words: "Mr. Watson, come here, I want to se
- At first, the public (5)_______ (REGARD) the telephone as a toy rather than a device.
- Bell also worked on many other inventions, including a metal detector and the (6)_______ (EARLY) flying machines.
