Put the verbs into past continuous, past perfect, past simple. 1) the browns (leave) for moscow a month ago. 2) boys (ride) their bikes at 4 o'clock yesterday. 3) we (arrive) at the theatre before the performance (begin 4) sam (do) his homework from 5 to 6. 5) when i (phone), ann already (clean) her parrot's cage. 6) the old lady (water) the flowers at that time. 7) tom (change) his mind by that time.

1) left
2)rode
3)arrived   began
4)did
5)phoned     cleaned 
6)water
7)changed

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.

We listen to the music every day.                                                                            I have just cut my finger.                                                                                             I went to the cinema yesterday.                                                                                I'll call back later.                                                                                                          She had finished writing letters by 10 o ' clock.                                                 Простите за ошибки я четвероклассник:(:(