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Task III.Comprehension check.
1. What is a vital part of instrumentation in petrochemical industries?
2. Why do we use a Pressure to Current converter (P/I converter) in petrochemical industries?
3. Why do we use Flow Meters?
4. What can create several problems, especially when retrofitting new equipment?
5. What instruments are used in olefin processing?

Task IV. Write out 5 sentences in Passive Voice and translate them into Ukrainian in written
form.

Task V. Make a summary of the text.

Grammar focus
The Present Simple, Continuous, Perfect and Past Simple, Continuous Tenses
Exercises
I. Open the brackets using the correct form in Present Simple or Continuous, Past Simple or
Continuous.
a) 1.Where you (to be) yesterday?-I (to be) at home the whole day.- I (to ring) you up at two
o’clock, but nobody (to answer).-Oh, I (to be) in the garden .I (to read) your book and (not to
hear) the telephone.2.What you (to do) at five o’clock yesterday?-I (to work) in the library.- I
(to be) there, too, but I (not to see) you.3. Nina (to celebrate) her birthday yesterday. Her
room looked beautiful, there (to be) many flowers in it. When I (to come) in, somebody (to
play) the piano, two or three pairs (to dance). 4. Listen! Somebody (to play) the piano. 5. I (to
like) music very much.6. When I (to look) out of the window, it (to rain) heavily and people
(to hurry) along the streets. 7. What you (to do) at seven o’clock yesterday?-I (to have)
supper. 8. When I (to come) home yesterday, I (to see) that all my family (to sit) round the
table. Father (to read) a letter from my uncle who (to live) in Kiev. 9. Yesterday I (to work) at
my English from five till seven. 10. It (to rain) the whole day yesterday. 11. Where your sister
(to be) now? She (to be) in her room. She (to do) her homework.

b) 1.We (to have) a postcard from them two days ago. They (to say) they (to have) a
marvelous time. 2.While she (to shop) this morning, she (to lose) her money. She (not to
know) how.3.They (to announce) our flight. We (to have) a problem. One of our suitcases (to
miss). 4. Who (to speak) there? I (not to know).5.He (not to smoke).He (not to smoke) now.
When he (to be) at the office yesterday, he (not to smoke), he (to work) hard. 6. When my
sister (to wash) her skirt, she (to find) a pound note in the pocket. 7. When you (to learn)
German? 8. We (to go) home now because it (to be) late. 9. Who you (to wait) for? 10. Her
car (to break) down yesterday while she (to drive) to work. 11. When and where it (to
happen)? 12. She always (to wear) nice clothes for work. Today she (to wear) a nice blouse
and a dark skirt. 13. What she (to watch) at the moment? 14. I (to see) my friend in the street
yesterday, but he (to run) for a bus and he (not to have) time to speak to me. 15. What your
son (to do)?-He (to study) computer science. 16. What you (to do) at the weekend? 17. When
she (to open) the door, a man (to stand) on the doorstep. It (to be) her uncle, but she (not to
recognize) him because he (to wear) dark glasses. 18. Last night we (to go) to a café to meet
our friends.

c) 1. She just (to go) out. 2. She (to leave) the room a moment ago. 3. We (not yet to solve)
the problem. 4. When it all (to happen)? 5. The morning was cold and rainy, but since ten the
weather (to change) and now the sun is shining brightly. 6. Show me the dress which you (to
make). 7. Oh, how dark it is! A large black cloud (to cover) the sky. 8. Oh, close the window!

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