Ex. 6. Insert the needed verbs: 1. Chemistry is the science which ... with materials and their properties. 2. We think that the exhibition of our achievements will ... at the end of September. 3. This scientist ... a great contribution both in chemistry and physics. 4. All his life he worked in the field of chemistry, and we can say that he ... his life to science. 5. All the changes which ... this reaction play a very important part. 6. Later Lavoisier ... the concept of the chemical elements. 7. This article … with the development of our industry.

1. Еquivalents
a) отримувати гарні оцінки - to get good marks
b) вікна виходять на -  windows face
c) бути відповідальним -  to be responsible to
d) записувати домашнє завдання -  to write down home tasks
e) дати пораду - to give a piece of advice

2. It is pupils of the narrator’s class who are responsible to water the flowers several times a week.

3. Lessons usually take place in such a way that a teacher asks a question and the pupils who can give an answer raise their hands and the teacher calls out one of them to answer the question. Teachers often call pupils to the blackboard to do different exercises or to write some sentences from dictation.

4. NOT mentioned
b) There are six floors in this school.
c) The narrator doesn’t like studying.

5. TRUE
c) Teachers give students home tasks.

Appearance- Holmes is known for his deerstalker hat and his pipe.
Crime - mysteries are often about disturbing events, like a crime.
Created - Dame Agatha Christy was a writer, therefore she’s created fictional detectives.
Investigation - looking into a crime is called investigating.
Hid - it appears the young man needed to hide from someone or something.
After - it’s quite difficult, or rather impossible to run out of someone, the only time you’re exiting another human, is at birth, and you’re probably not running.
Put up - I can hardly imagine a detective setting a time and date for a fight with a burglar, safe to assume it was spontaneous.
Explored - I would love to explore an old chest, it’s probably filled with treasures.
Area - once again, unless there are tiny people living inside the nephew and opening shops in his body, I’d go with area.
An amazing - I mean, maybe it’s some kind of a Jumanji book and then it’s probably dangerous, but what’s much more likely, is that it’s just an amazing book to read.