1. Because of the shortage of water, we should use it very ___ (effect)
2. Saving money is ____ to all of us. (profit) 
3. ______ from his friends made him sad. (separate)
4. Have you ever met Susan ______? (recent)
5. You should always try to behave quite _______ (ordinary)
6. Scientist succeeded in _______ oxygen. (solid)
7. Susan won the prize for _____ of attendance at school last month. (regular)
8. He is responsible for the heating ______ of this building. (install)
9. Energy-saving bulb should be used to save _____. (electrify)
10. A _____ is the person who installs and repairs thing such as water pipes, toilets, etc....(plumbing)
11. To keep the air unpolluted, people ought to use ____ energy to create electricity. (sun)
12. There have been many ____  in the field of electrical engineering.(innovate)
13. Televisions, dishwashers and freezers are electrical ____. (apply)
14. No doubt that there will be a great ______ of food for the world's population. (short) 
15. If there is something wrong with the lights, ask an _____ to look at it. (electric)  
16. An old friend of mine felt amazed at the prize for her efforts at ____ in her country. (conserve)

Read the following passage and mark the letter A, B, C, or D on your answer sheet to indicate the correct word or phrase that best fits each of the numbered blanks from 1 to 5.

To many people, their friends are the most important in their life. Really good friends always (1) ___ joys and sorrows with you and never turn their backs on you. Your best friend may be someone you have known all your life or someone you have grown (2) ____with.

There are all sorts of things that can (3)____about this special relationship. It may be the result of enjoying the same activities and sharing experiences. Most of us have met someone that we have immediately felt relaxed with as if we had known them for ages.____(4), it really takes you years to get to know someone well enough to consider your best friend. To the ____(5)of us, this is someone we trust completely and who understands us better than anyone else. It's the person you can tell him or her your most intimate secrets.

Question 4

A. Therefore

B. In addition

C. However

D. Yet

Read the following passage and mark the letter A, B, C, or D on your answer sheet to indicate the correct word or phrase that best fits each of the numbered blanks from 1 to 5.

To many people, their friends are the most important in their life. Really good friends always (1) ___ joys and sorrows with you and never turn their backs on you. Your best friend may be someone you have known all your life or someone you have grown (2) ____with.

There are all sorts of things that can (3)____about this special relationship. It may be the result of enjoying the same activities and sharing experiences. Most of us have met someone that we have immediately felt relaxed with as if we had known them for ages.____(4), it really takes you years to get to know someone well enough to consider your best friend. To the ____(5)of us, this is someone we trust completely and who understands us better than anyone else. It's the person you can tell him or her your most intimate secrets.

Question 3

A. provide

B. bring

C. cause

D. result

Read the following passage and mark the letter A, B, C, or D on your answer sheet to indicate the correct word or phrase that best fits each of the numbered blanks from 1 to 5.

To many people, their friends are the most important in their life. Really good friends always (1) ___ joys and sorrows with you and never turn their backs on you. Your best friend may be someone you have known all your life or someone you have grown (2) ____with.

There are all sorts of things that can (3)____about this special relationship. It may be the result of enjoying the same activities and sharing experiences. Most of us have met someone that we have immediately felt relaxed with as if we had known them for ages.____(4), it really takes you years to get to know someone well enough to consider your best friend. To the ____(5)of us, this is someone we trust completely and who understands us better than anyone else. It's the person you can tell him or her your most intimate secrets.

Question 2

A. up

B. through

C. on

D. in

Read the following passage and mark the letter A, B, C, or D on your answer sheet to indicate the correct word or phrase that best fits each of the numbered blanks from 1 to 5.

To many people, their friends are the most important in their life. Really good friends always (1) ___ joys and sorrows with you and never turn their backs on you. Your best friend may be someone you have known all your life or someone you have grown (2) ____with.

There are all sorts of things that can (3)____about this special relationship. It may be the result of enjoying the same activities and sharing experiences. Most of us have met someone that we have immediately felt relaxed with as if we had known them for ages.____(4), it really takes you years to get to know someone well enough to consider your best friend. To the ____(5)of us, this is someone we trust completely and who understands us better than anyone else. It's the person you can tell him or her your most intimate secrets.

Question 1

A. have

B. share

C. give

D. spend

Read the following passage and mark the letter A, B, C, or D on your answer sheet to indicate the correct word or phrase that best fits each of the numbered blanks. Fill in the appropriate word in question 28

THE FUTURE OF WATER

Many of us often wonder what the future holds; some believe major advances in technology will occur which will result in improvements to our everyday lives. Scientists have predicted shortages in fossil fuels and changes in the weather patterns of the world. (25)________, one significant change that will have an alarming impact on all of us is the global water shortage. Analysts have forecast that some of the consequences of this will be mass migration from Africa to Europe and wars between countries over clean water. The main causes of this disturbing water shortage are global warming, climate change and the increasing world population. The supply of fresh water (26) ________ comes from mountain glaciers and flows into lakes and rivers is diminishing, and this also (27)__________ to the shortage. Water analysts and government leaders need to start making radical changes to the way water use is managed and they need to find new sources that will be able to meet the demands of an ever-growing population. In addition, more things need to be done to control global warming as this will help to reduce water shortages. People should be made (28)_______of the situation and warned not to waste water. Multinational companies should invest in developing better water management systems. In summary, if we start (29)_______ action now, we might be able to prevent a world disaster.

A. known

B. certain

C. aware 

D. acquainted

Read the following passage and mark the letter A, B, C, or D on your answer sheet to indicate the correct word or phrase that best fits each of the numbered blanks. Fill in the appropriate word in question 26

THE FUTURE OF WATER

Many of us often wonder what the future holds; some believe major advances in technology will occur which will result in improvements to our everyday lives. Scientists have predicted shortages in fossil fuels and changes in the weather patterns of the world. (25)________, one significant change that will have an alarming impact on all of us is the global water shortage. Analysts have forecast that some of the consequences of this will be mass migration from Africa to Europe and wars between countries over clean water. The main causes of this disturbing water shortage are global warming, climate change and the increasing world population. The supply of fresh water (26) ________ comes from mountain glaciers and flows into lakes and rivers is diminishing, and this also (27)__________ to the shortage. Water analysts and government leaders need to start making radical changes to the way water use is managed and they need to find new sources that will be able to meet the demands of an ever-growing population. In addition, more things need to be done to control global warming as this will help to reduce water shortages. People should be made (28)_______of the situation and warned not to waste water. Multinational companies should invest in developing better water management systems. In summary, if we start (29)_______ action now, we might be able to prevent a world disaster.

A. who

B. it

C. which

D. what

Read the following passage and mark the letter A, B, C, or D on your answer sheet to indicate the correct word or phrase that best fits each of the numbered blanks. Fill in the appropriate word in question 27

THE FUTURE OF WATER

Many of us often wonder what the future holds; some believe major advances in technology will occur which will result in improvements to our everyday lives. Scientists have predicted shortages in fossil fuels and changes in the weather patterns of the world. (25)________, one significant change that will have an alarming impact on all of us is the global water shortage. Analysts have forecast that some of the consequences of this will be mass migration from Africa to Europe and wars between countries over clean water. The main causes of this disturbing water shortage are global warming, climate change and the increasing world population. The supply of fresh water (26) ________ comes from mountain glaciers and flows into lakes and rivers is diminishing, and this also (27)__________ to the shortage. Water analysts and government leaders need to start making radical changes to the way water use is managed and they need to find new sources that will be able to meet the demands of an ever-growing population. In addition, more things need to be done to control global warming as this will help to reduce water shortages. People should be made (28)_______of the situation and warned not to waste water. Multinational companies should invest in developing better water management systems. In summary, if we start (29)_______ action now, we might be able to prevent a world disaster.

A. amounts

B. contributes

C. results

D. relates

Read the following passage and mark the letter A, B, C, or D on your answer sheet to indicate the correct word or phrase that best fits each of the numbered blanks. Fill in the appropriate word in question 25

THE FUTURE OF WATER

Many of us often wonder what the future holds; some believe major advances in technology will occur which will result in improvements to our everyday lives. Scientists have predicted shortages in fossil fuels and changes in the weather patterns of the world. (25)________, one significant change that will have an alarming impact on all of us is the global water shortage. Analysts have forecast that some of the consequences of this will be mass migration from Africa to Europe and wars between countries over clean water. The main causes of this disturbing water shortage are global warming, climate change and the increasing world population. The supply of fresh water (26) ________ comes from mountain glaciers and flows into lakes and rivers is diminishing, and this also (27)__________ to the shortage. Water analysts and government leaders need to start making radical changes to the way water use is managed and they need to find new sources that will be able to meet the demands of an ever-growing population. In addition, more things need to be done to control global warming as this will help to reduce water shortages. People should be made (28)_______of the situation and warned not to waste water. Multinational companies should invest in developing better water management systems. In summary, if we start (29)_______ action now, we might be able to prevent a world disaster.

A. However

B. Although

C. Despite

D. Therefore