II. Choose the appropriate word to complete each of the following sentences

1. Our plans for the project are still somewhat ______.

a) liquid b) obscure c) ambiguous d) fluid

2. It was a fruitful discussion which ______ several different viewpoints.

a) encompassed b) embraced c) contained d) involved

3. This is only true in deep space when the gravitational force can be _______.

a) omitted b) neglected c) avoided d) forgotten

4. The ______ of fertilizer increased the size of the plants.

a) introduction b) usage c) application d) choice

5. The _____ practice is to investigate those biological phenomena that all living things have in common.

a) present b) current c) contemporary d) existing

6. It was during the 12th century that botany was developed from the study of plants with healing ______.

a) properties b) qualities c) characteristics d)features

7. Homology became an important concept in uniting outwardly diverse groups of animals into distinct groups, a factor that is of great ________ in the study of evolution.

a) value b) importance c) significance d) weight

8. Calcium is _______ for the development of healthy teeth and bones.

a) crucial b) vital c) basic d) essential

9. Students ______ increasingly difficult tasks as the course continues.

a) perform b) achieve c) complete d) fulfil

10. The number of elementary particles in the _____ physical universe is only about 1080.

a) complete b) all c) entire d) full

11. The first meeting will be in the City Hall, but all ______ meetings will be held in the school.

a) afterwards b) successive c) follow-up d)subsequent

12. We can't make a decision until we have all the ______ information.

a) relevant b) important c) concerning d) referring

13. The next chapter will ______ on this problem in greater detail.

a) deal b) focus c) conern d) attend

14. Advances in medical science have ______ the need for many patients to spend long periods of time in hospital.

a) scrapped b) eliminated c) abolished d) cancelled

15. Scientists have made a major _________ in the treatment of cancer.

a) breakthrough b) progress c) milestone d) step

16. A(n) _______ of fruits and vegetables grow in Kenya's temperate climate.

a) plenty b) multitude c) amount d) abundance

17. All the children in the class have to ________ their own science experiments.

a) do b) go about c) conduct d) carry on

18. Major earthquakes like this ______ very rarely.

a) occur b) come about c) turn up d) arise

19. Some ________ of the marine invertebrates have left the water.

a) forefathers b) descendants c) ancestors d) followers

20. _______, I thought I would only stay there a year.

a) originally b) at the start c) at the outset d) initially

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I. Translate the following sentences into English	\|	III. Reconstruct the following text using the words from the box to fill in the blanks. What do you think about extraterrestrial life?

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