A
2 Write affirmative sentences using the past
simple. Are they true or false? Correct the false
sentences with your partner.
Neil Armstrong (discover) America.
Neil Armstrong discovered America. False.
1 Europeans — (explore) Africa in the 18th
century.
2 Tutankhamen - (live) in Egypt a long time
ago.
3 The first astronauts — (visit) space in 1981.
4 Columbus _ (arrive) in South America
about 500 years ago.
5 People _ (stop) using horses for transport
in the 19th century.
6 In 1700 people — (travel) by plane.
7 Graham Bell — (invent) the telephone.​

The problem of water pollution is especially acute in densely populated countries. In some regions of the planet, not only drinking water is lacking, in the dirtiest rivers it is unsuitable even for domestic needs.

Water purification is one of the ways to solve the problem of water pollution. Business owners should attend to the installation of quality treatment facilities. The presence of such devices, of course, is not able to completely stop the release of toxic substances, but they are quite capable of significantly reducing their concentration.

The use of recycling water supply technologies many times reduces the amount of harmful emissions, reduces actual water consumption, and reduces the loss of raw materials in production. In the process of purification, valuable substances that have got into the water during the production process are extracted from the contaminated liquid.

My favorite subject is English. I love this subject because I love learning and speaking in English.

2. Yes, I do. But sometimes I don’t wear a uniform because it’s uncomfortable.

3. I believe that a person should be purposeful and hardworking to always get good grades.

4. Sometimes I do not understand some subjects, but I try to learn them.

5. Yes, I do. I like to spend time with my classmates because they are very funny and kind people.

6. I like to play basketball. It is interesting and active in sports here.

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