Choose the proper word. 1. Different hydrocarbon fractions (make, make up) petroleum. Large resources ofoil and gas
(make, make up) a countrypowerful and politicallyindependent.
2. Aflowofelectronsis anelectric (current, currently). (Current, Currently) oil is being produced
all over the world. (Current, Currently) financial crisis is being held around the world.
3. Oil and gas are important (sources, resources) offuel. Oil and gas are the major natural (sources,
resources) ofenergy. Siberia is rich in mineral (sources, resources) such as: oil, gas, gold and
others.
4. The first (commercial, industrial) well was drilled in this region in 1980. Living standard in the
developed (commercial, industrial) countries is high. (Industrial, commercial) nations should
paymuch attention to air pollution control.
5. The early wells were all drilled by the cable tool (ударно-канатное бурение) method in
which adriller had to (raise, rise) and drop a heavytool. and gas(raise, rise) to
the surface bymeans ofreservoir pressure.
6. Oil industryhas to (solve, decide) a lot ofenvironmental problems. The engineers (solved,
decided) to drill a well to the depth of 100 m.
Petroleum Engineering
1. The teacher repeated the question. Did the teacher repeat the question? The teacher didn't repeat the question.
2. The boys played football in the afternoon. Did the boys play football in the afternoon.The boys didn't play football in the afternoon.
3. The girl caught cold. Did the girl catch cold.The girl didn't catch cold.
4. Mother turned off the gas. Did mother turn off the gas. Mother didn't turn off the gas.
5. They slept in the open air. Did they sleep in the open air.They didn't sleep in the open air.
6. The pupils answered at once. Did the pupils answer at once.The pupils didn't answer at once.
7. The boy broke the window. Did the boy break the window. The boy didn't break the window.
8. The woman changed her clothes. Did the woman change her clothes. The woman didn't change her clothes.
9. The tourists reached the village before dark. Did the tourists reach the village before dark.
The tourists didn't reach the village before dark.
10. The clock struck five. Did the clock strike five.The clock didn't strike five. 11. Our team won the match. Did our team win the match. Our team didn't win the match. 12. The doctor allowed you to go out. Did the doctor allow you to go out.The doctor didn't allow you to go out.