Turn the following sentences into Passive Voice
1. William Harvey established the true mechanism of blood circulation.
2. Botanist Carolus Linnaeus established taxonomy as a discipline.
3. Charles Darvin developed the theory of evolution by natural selection.
4. The Austrian monk Gregor Mendel first formulated the concept of particulate heredity factors.
5. Scientists employ the metric system to measure the size and volume of specimens.
6. In this first unit we will examine the nature of science.
7. In 1953, American scientist James Watson and British scientist Francis Crick developed the model for deoxyribonucleic acid (DNA).
8. Since that time scientists have successfully applied the evolutionary explanation to newly discovered creatures.
9. A team of American scientists is carrying out a research into the effects of exhaust gases.
10. The doctor postponed the operation yesterday due to the patient’s bad condition.

Turn the following sentences into Active Voice making any necessary changes
1. The theory of evolution is well accepted by scientists and most of the general public.
2. This heat is removed from our bodies by sweating.
3. The word “cell” was introduced by the English scientist Robert Hooke.
4. Embriology was founded by Karl Ernst von Baer.
5. Living things are found virtually everywhere.

1) I don't think it's fair that we have to come in to work even if we're sick.
2) Don't you remember that we are supposed  to have dinner together with my dad?
3) It's your duty to be beautiful. 
4) I'm not sure who invented mirrors, but I want to hug them.
5) How can we reach our goals? 
6) I suppose you will understand it.
7) Do you have the courage to follow your heart?
8) Can you told me what is the problem?
9) Have you any evidence that the data is incorrect? 
10) If person tells lies, I'm not going to call him a liar, but just point out that it was a poor storytelling choice. 

Удачи!... ;)

I think any man in this world will agree with me that the language is a very important part of our lives. because language is part of the culture of any people.It is through the knowledge of languages, people from different parts of the world can communicate.
English language is very important in our lives. This language is spoken in nearly 60 countries. This suggests that it is of great importance, including in my life.Now every educated person should know English. It is very important to be fluent in English and be fluent in it.If you know English, you have very many opportunities that are not available to other people. You can travel the world and find new friends. You can read English books and watch movies with the original voice acting. People who know English earn more money than those who do not know him. In addition, scientists say: the language learning develops the brain. For knowing the customs of any nation must first learn his language.A different language is a different Outlook on life.
I think everyone can learn English, but it takes patience, diligence and zeal.In addition you need every day to learn new words and to read books in English.
Knowledge of English will make my life richer, brighter, more interesting.