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ducbinh1983
2 năm trước
Choose the best answer to each of the following questions.
We were unable to carry out the experiment _____.
A.on account of malfunction in the computer
B.being a malfunction in the computer
C.as the computer malfunction
D.there was a computer malfunction
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Các câu hỏi liên quan

Read the following passage and mark letter A, B, C or D to indicate the correct answer to each of the questions that follow.
Solar energy is a long lasting source of energy which can be used almost anywhere. To generate solar energy, we only need solar cells and the sun. Solar cells can easily be installed on house roofs, so no new space is needed and each user can quietly generate their own energy. Compared to other renewable sources, it also possess many advantages. Wind and water power rely on turbines which are noisy, expensive and easy to break down. Solar cells are totally silent and non-polluting. As they have no moving parts, they require little maintenance and have a long lifetime.
However, solar energy also has some disadvantages. We can only generate solar energy during daytime because the system depends on sunlight. Besides, solar cells require large area to work effectively. The main disadvantage of solar energy is that it costs about twice as much as traditional sources such as coal, oil, and gas. This is because solar cells are expensive. Scientists are hoping that the costs of solar cells will reduce as more and more people see the advantages of this environmentally friendly source of energy.
What is NOT mentioned as an advantage of solar cells?
A.They cost little to produce.
B.They are non-polluting.
C.They operate quietly.
D.They require little maintenance.

Read the following passage and mark letter A, B, C or D to indicate the correct answer to each of the questions that follow.
Solar energy is a long lasting source of energy which can be used almost anywhere. To generate solar energy, we only need solar cells and the sun. Solar cells can easily be installed on house roofs, so no new space is needed and each user can quietly generate their own energy. Compared to other renewable sources, it also possess many advantages. Wind and water power rely on turbines which are noisy, expensive and easy to break down. Solar cells are totally silent and non-polluting. As they have no moving parts, they require little maintenance and have a long lifetime.
However, solar energy also has some disadvantages. We can only generate solar energy during daytime because the system depends on sunlight. Besides, solar cells require large area to work effectively. The main disadvantage of solar energy is that it costs about twice as much as traditional sources such as coal, oil, and gas. This is because solar cells are expensive. Scientists are hoping that the costs of solar cells will reduce as more and more people see the advantages of this environmentally friendly source of energy.
What does the passage primarily discuss?
A.Advantages and disadvantages of solar energy.
B.The cost of solar energy.
C.Solar energy as an alternative for fossil fuels.
D.Solar energy's advantages over other sources of energy.

Read the following passage and mark letter A, B, C or D to indicate the correct answer to each of the questions that follow.
Solar energy is a long lasting source of energy which can be used almost anywhere. To generate solar energy, we only need solar cells and the sun. Solar cells can easily be installed on house roofs, so no new space is needed and each user can quietly generate their own energy. Compared to other renewable sources, it also possess many advantages. Wind and water power rely on turbines which are noisy, expensive and easy to break down. Solar cells are totally silent and non-polluting. As they have no moving parts, they require little maintenance and have a long lifetime.
However, solar energy also has some disadvantages. We can only generate solar energy during daytime because the system depends on sunlight. Besides, solar cells require large area to work effectively. The main disadvantage of solar energy is that it costs about twice as much as traditional sources such as coal, oil, and gas. This is because solar cells are expensive. Scientists are hoping that the costs of solar cells will reduce as more and more people see the advantages of this environmentally friendly source of energy.
What does the word ‘they’ in the first paragraph refer to?
A.other renewable resources
B.solar energy users
C.advantages
D.solar cells

Read the following passage and mark letter A, B, C or D to indicate the correct word that best completes each of the numbered blanks from 45 to 47.
Clothes can tell a lot about person. Some people like very colorful clothes (45) _____ they want everyone to look at them and they want to be the center of attention. Other people like to wear nice clothes, but their clothes are not (46) _____ or fancy. They do not want people to look at them. Clothes today are very different from the clothes of the 19th century. One difference is the way they look. For example, in the 19th century, all women wore blouses with long skirts. But today, women do not always wear blouses with long skirts. Sometimes they wear short skirts. Sometimes they wear pants. Another difference between the 19th century and today is the (47) _____. In the 19th century, clothes were made only from natural kinds of cloth. They were made from cotton, wool, silk. But today, there are many kinds of man-made cloth. A lot of clothes are now made from nylon, rayon or polyester.
(45) ______
A.because of
B.because
C.but
D.so

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