Как поставить глагол в первое число третье лицо на английском языке​

He or she

For example:he rides a bike

I called you last night, but you weren't home. Where were you? - I went outside the city to visit my father and returned very late 2) Where did you live three years ago? - I lived in Kiev. I studied there at the institute. Now I am an engineer and work in Moscow at a large plant. 3) My friend began learning English two years ago. Now he speaks good English and can receive representatives of foreign firms. 4) Yesterday we received many letters from different firms. One of the letters is a request for our electrical equipment. 5) In the last lesson, we did not write exercises. We discussed the fifth text and answered the questions of the teacher. 6) Last week, our director signed a contract with two firms. We sold them 10 boilers. 7) Who gave you our phone number yesterday? - Your secretary. 8) I really like your new watch. When did you buy them?-By days.

1.biological science studies all living organisms that inhabit our planet
2.even in the most remote times, people have tried to understand the world around them, and had a rather extensive knowledge about plants and animals
3.Modern biology has started to develop in the XVII century.
4. The microscope invented by Leeuwenhoek, allowed scientists
discover the world of microorganisms.
5. In the XVIII century, Carl Linnaeus laid the foundations of modern
classification of living things.
6. The laws of heredity and the principle of natural selection were
formulated in the XIX century.
7. In our day human knowledge in the field of biology grow very
quickly thanks to computer technology.

1. In these days there are so many biological
disciplines, that one person can not learn them all.
2. Students should learn the basics of the four main sections
Biology: zoology, botany, molecular biology, and genetics.
3. Genetics studies the laws of heredity and how to live
They are adapted to environmental conditions.
4. Graduates of biological faculties granted
many opportunities for career growth.
5. Medicine need talented scientists, which could lead
in gene therapy research fields, viral infections, etc..
6. Humanity is going through a period of climate change, and
the task of scientists - to predict the consequences of these processes.
7. Ecology studies the environment and the way in which
plants, animals and humans exist together and influence each other.