A) Choose the correct word. 1 Have you ever / never been camping with friends? 2 No, I haven’t been camping with my friends already / yet. 3 Yes, I’ve already / yet been camping with my friends. 4 Have you finished the book ever / yet? 5 Yes, I’ve just / yet finished it. 6 Have you ever / yet been to London? 7 No, I’ve ever / never been to London.

1. Ever
2. Yet
3. Already
4. Yet
5. Just
6.ever
7.never

                                                                                    Moscow (или ваш город)

                                                                                             Russia

                                                                                             23/02/18

Dear Duncan,

Thanks a lot for your letter. I was great to hear from you! Sorry I haven't written earlier but I was really busy with my school.

It was interesting to learn about your hobby. As for me, I like reading science fiction and fantasy books. Actually, all the members of my family are keen on reading. We also like cycling, so we often go on family bike rides. In the future I might like to try rock climbing because I want to become fitter and stronger.

Well, I’d better go now as I have to do my homework.

Write back soon.

Best wishes,

Ваше имя

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Water is a physical need of the human body. We can live without food up to 30-40 days, but without clean drinking water we won’t survive even 3-4 days. This should come as no surprise: the body of an adult consists of around 60-70 percent of water. It is contained in all tissues, and it is essential for metabolic processes, temperature regulation, nutrients transportation via the circulatory system and waste removal. It participates in almost all physiological processes. Lack of water can cause various diseases – from headache to muscle spasms and cramps.