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Try to translate the text into Russian without a dictionary

Since many years, people used polymers in their life but they did not know it well almost until World War II. There were relatively few materials available for the manufacture of the article needed for a civilized life. Steel, glass, wood, stone, brick, and concrete for most of the construction and cotton, wood, jute, and a few other agricultural products for clothing or fabric manufacture were used.

The rapid increase in demand for the manufactured products introduce the new materials. These new materials are polymers, and their impact on the present way of life is almost incalculable. Product made from polymers are all around us: clothing made from synthetic fibers, polyethylene cups, fiberglass, nylon bearings, plastic bags, polymer-based paints, epoxy glue, polyurethane foam cushion, silicone heart valves, and Teflon-coated cookware. The list is almost endless.

Choose the most suitable verb form in each sentence.

Did you see/Have you seen my bag anywhere? I can't find it.

Larry is writing/has been writing/has written his novel for the last two years.

From the minute he got up this morning Gary asked/has asked/has been asking silly questions

Have you given/Did you give Helen my message when you have seen/saw her?

Sorry, could you say that again? I didn't listen/haven't listened/haven't been listening to you.

The police think that they found/have found your wallet, so call this number.

Did you two meet/Have you two met before? Eric, this is Amanda,

Did you meet/Have you met anyone interesting at the reception?

Put each verb in brackets into a suitable verb form.

a) I'm sorry about not coming last week. I (have) had. a cold and so I (stay) at home.

b) Wait a minute! I (have) an idea. Let's go and see Roger. We last (see) him a long time ago.

c) It's nice to be back here in London. This is the second time I (come) here.

d) I'm phoning about your bicycle for sale, which I (see) in the local paper. (you sell) it? Or is it still available?

e) This place is in a terrible mess! What on earth (you do) ?

f) And now for an item of local news. Hampshire police (find) the dangerous snake which (go) missing earlier in the week.

g) This tooth (kill) me lately! So I (make) an appointment with the dentist for next Tuesday.

h) I can't give you the report I (promise) for today because I (not finish) it.