W Instructions: Read through the text below, complete the gaps John Snow John Snow 1) born in 1813 in York, England and was the eldest of nine children. When he 2) fourteen, he started working for a surgeon and went on to study medicine. In 1855, a lot of people started dying in an area of London of the illness cholera and John Snow went there to study what was 3) He discovered that the people who had died were drinking 4) same water. Before this study, no one 5) how people got the illness. The results of his study 6) important because they 7) how the illness spread and also 8) to start the science of public health. 1. is was had 2. has had was 3. happen happened happening,продолжение на фото очень надо
The addition of ethanol is a legal obligation for fuel distributors. Law No. 8723 of 1993 provides for the addition of anhydrous alcohol to gasoline. A few years later, new regulations changed the percentage of the mixture. Since March 2015, the mandatory percentage of anhydrous ethanol in regular gasoline is 27%. The share of premium gasoline is 25%.
The addition of ethanol is a legal obligation for fuel distributors. Law No. 8723 of 1993 provides for the addition of anhydrous alcohol to gasoline. A few years later, new regulations changed the percentage of the mixture. Since March 2015, the mandatory percentage of anhydrous ethanol in regular gasoline is 27%. The share of premium gasoline is 25%.
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