16. Choose the answer which correctly
completes the sentence.
Managers of big companies often require that
the secretary … responsible and devoted to her
job fully.
A) is B) be C) was D) been
17. Choose the answer which correctly
completes the sentence.
… their own tests, the students started doing
them very quickly.
A) Being taken
B) Took
C) Having taken
D) Had taken
18. Choose the answer which correctly
completes the sentence.
One way to enlarge one’s outlook is to watch
more … programs on TV.
A) agricultural
B) educational
C) industrial
D) cultural
Read the text answer the questions 19 – 21
Man does not actually have to kill the last
whales of a species with his own hands, as it
were, to cause its disappearance. Biological
extinction will quickly follow the end of
commercial whaling, should that end be due to
a shortage of raw material, that is, of whales.
Whalers have long sought to defend their
wretched trade by insisting that whales are
automatically protected: as soon as they
become rare, and therefore uneconomic to
pursue, man will have no choice but to stop the
hunting. That is a very nice theory, but it is the
theory of an accountant and not of a biologist;
only an accountant could apply commercial
economics to complex biological systems. The
reasons for its absurdity are many and varied.
When the stock has been reduced below a
critical level, a natural, possibly unstoppable
downward spiral begins because of three main
factors. Just to mention one of them, the
animals lucky enough to survive the slaughter
will be too scattered to locate one another in the
vastness of the oceans,
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