THE WOMAN PAYS ME A FAIR SALARY. I WORK FOR HER. (COMBINE USING A P...

3. The woman pays me a fair salary. I work for her. (combine using a preposition + a

relative pronoun)

-->...

IV. Reading:

A. Read the passage carefully and choose the best option to fill in each blank: (1.25 p)

The growth of cities and the (1)...of industries in the nineteenth and twentieth

centuries brought increasing pollution of the rivers and waterways. As a consequence, water

purification treatments have become more and more important as a means of providing safe

water.

The most widely used method of water purification is water filtration plants (2)...remove

impurities from the water by passing it (3)...sand, and, in some systems, treating the water

with elements such as chlorine.

Filtration systems began in the Western Europe. The first treatment plants were built in

1829 to purify the River Thames in England.

In 1854, the (4)...for water treatment plants became recognized and the need for pure

water a matter of public concern when London cholera epidemic was traced to public well.

Most cities, first in England, then in the US and later throughout the world, developed

filtration plants to avoid cholera outbreaks that frequently ravaged (5)...communities.