Відповіді: Стр.119 (5b)

5. b) In pairs, ask and answer the questions. Take turns.

1. When did Humphry Davy produce the first electric light? – He produced the first electric light in 1802.

2. What was his first invention called? – It was called the electric arc lamp.

3. Where was Thomas Edison from? – He was from America / the USA.

4. How long could the carbonised bamboo filament last? – It could last for more than 1,200 hours.

5. When did Alexander Bell invent the first telephone? – He invented the first telephone in 1876.

6. Who did he call? – He called his assistant, Thomas Watson.

7. When was the first communication satellite launched? – It was launched in 1962.

8. Who invented the first mobile phone? – Martin Cooper invented the first mobile phone.