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walk properly after the surgery.
2. Sorry, I
hear you.
3. James
cook very well, he is a chef in an Italian restaurant!
4. You lived in England. You must
speak English like a native speaker.
5. My mother told me that my uncle
dance like a professional when he was younger.
6. When I was a child I used to
touch my toes, but I can't now.
7. We
have purchased more timber, but I thought I should talk to you first
2 He did some experiments and came to the conclusion that smoke had the power to lift things up and carry them through the air.
3 The Montgolfier brothers quickly realised that it was heat and not smoke that had the power to lift things.
4 On 19th September 1783, they presented their first hot-air balloon, which was made from paper and cloth.
5 They burned some straw underneath it and the heat helped the balloon to float.
6 A sheep, a duck and a chicken were in the basket that hung below the balloon for the two-mile journey and they landed safe and sound.
7 Shortly afterwards, the brothers asked the king for permission to send men up in the balloon.
8 The king agreed, and the first flight consisting of human passengers took place in Paris on 21st November 1783, with great success.