In the following passages the numbered gaps indicate missing words. Against each number in the below each passage, four options are offered in columns lettered A to D. choose the word that is the most suitable to fill the numbered gap in the passages.

Oil is perhaps the most sought – after of all -77- How ever, a major difficulty in its -78- is that oil -79- are very often below the sea -80-. As a result, the search for oil is very expensive, and unless oil is found there in -81- quantities the companies or governments involved are liable to lose heavily. Therefore before -82- starts, extensive surveys are carried out to see how much oil, or -83- gas the rock formation is likely to yield. If the results are favourable an oil rig is towed into position. The rig consists of a main -84- on which the men work and a derrick which supports the drill. This drill goes down thousands of feet until oil or a -85- of gas is reached. The next stage is to transport the gas or oil to the shore. In the case of gas this is normally done by laying a -86- below the sea, but oil on reaching the top of the well is more often transported in its -87- state by -88-. On shore it is -89- into different fuels or it is treated chemically to turn it into a variety of -90- materials such as polythene.
Publishing is a fast growing business and there are therefore many publishing houses all over the country. When -91- is submitted by an author, the publisher sends it to -92- to know if it is actually publishable. This step is important because the publisher wants to make sure that the book catches the -93- when it is actually published. In a good publishing house, there is -94- section which is concerned with -95- the manuscript and correcting both the spelling and typing errors. After this, the manuscript is -96- in readiness for -97-. The printed -98- are then stored in the warehouse and a few of them may be sent to the author as -99- copies. Since it is not just the aim of the publisher to offset the cost of production but also to make some profit, there is a strong marketing division which promotes sales. A certain percentage of the cover price of the book is paid to the author as 100-

In question numbered 78 above, choose the best option from letters A - D that best completes the gap.

A. manufacture

B. exploitation

C. research

D. investigation

In question numbered 79 above, choose the best option from letters A - D that best completes the gap.

A. fields

B. plants

C. mines

D. holes

In question numbered 80 above, choose the best option from letters A - D that best completes the gap.

A. surface

B. shelf

C. shore

D. bed

In question numbered 81 above, choose the best option from letters A - D that best completes the gap.

A. usable

B. saleable

C. commercial

D. practical

In question numbered 82 above, choose the best option from letters A - D that best completes the gap.

A. mining

B. prospecting

C. drilling

D. digging

In question numbered 83 above, choose the best option from letters A - D that best completes the gap.

A. natural

B. oceanic

C. flammable

D. household

In question numbered 84 above, choose the best option from letters A - D that best completes the gap.

A. ramp

B. foundation

C. scaffold

D. platform

In question numbered 85 above, choose the best option from letters A - D that best completes the gap.

A. pocket

B. marsh

C. baloon

D. stratum

In question numbered 86 above, choose the best option from letters A - D that best completes the gap.

A. cable

B. tunnel

C. pipeline

D. channel

In question numbered 87 above, choose the best option from letters A - D that best completes the gap.

A. raw

B. crude

C. liquid

D. impure