Task 4. Put the verbs in brackets in the correct tenses: Present Simple/Present Continuous/Present Perfect/Present Perfect Continuous 1. They (to watch) television at the moment.2. How long you (to wait) for me?3) My sister always (to read) a story before sleeping. 4) I (not to see) this film yet./4Task 5. Write the verbs in brackets with the –ing or to-infinitive: 1) He was willing (help) me.2) If you want to lose weight, try (eat) less sweets.3) Bob can (run) fast.​

Объяснение:

1. are watching

2 have you been waiting

3. reads

4. haven't seen

1. to help

2. eating

3. run

1. Choose the right variant:
The engineers … new methods in their work now.
c) are applying

2. Choose the right variant:
We … already them about the prices and terms of payment. 
d) have informed

3. Choose the right variant:
These machines are as … as that ones.
a) expensive
d) expensive

4. Choose the right variant:
If you … I’ll consult the financial manager.
b) don’t hurry

5. If you are interested in our notebooks we … to supply
you with any model on mutually acceptable terms.
d) will be able

6. Choose the right variant:
Advanced technologies must be used … the scale of production.
b) to increase

7. Choose the right variant: Многие проблемы, встретившиеся в проекте и обсужденные здесь, являются общими для обеих форм структуры.
Many of the problems … in the design and … here are common in both forms of structures. 
c) met/ discussed

8. Choose the right variant: 
Agriculture and manufacturing … hundreds of new goods for consumers every year.
e) provide

9. New better products … by companies under conditions of competition.
a) are introduced

10. Вода, нагретая в реакторе, подается в теплообменник.
d) The water heated in the reactor is delivered into the heat exchanger tubes. 

11. If you want to get information about goods you send to the firm … .
b) an order

12. He improved his report by … the end. 
d) changing

13. The mechanical engineer (должны обучаться) in mechanics, hydraulics and thermodynamics and must know such subjects as metallurgy and machine design.
e) must be trained

14. The following examples were made use of.
b) Past Simple passive

The lack of a proper organization of nature protection leads to the destruction of forests, destruction of forest fauna. The pollution of internal and sea waters is very noticeable. Many rivers have already become dangerous to use for water supply to cities. The industrial waste of numerous coastal enterprises pollute the Mediterranean Sea, damaging the fauna and flora. The discharge of sewage into the lagoon on the island of Sardinia endangers flamingos and other rare birds that stop here during seasonal migrations. Solving these problems 1. Creation of various types of treatment facilities, destruction and processing of garbage, reclamation of disturbed lands, etc. 2. Thoughtful, rational placement of various industries (chemical, petrochemical, ferrous and non-ferrous metallurgy, etc.). 3. Proper organization of nature protection. Unemployment (especially high% in the South of the country). Ensure employment of the population by creating new jobs. The creation of modern industries, which will require a large number of workers (electronics, electronic engineering, pharmaceuticals, aircraft construction, etc.)