Question

[Bùi Đoàn Quốc Việt]

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Answer 1

[Phạm Nguyễn Tố Như]

XII.

71. We are looking for a cheap, clean, effective source of energy that/which doesn’t cause
pollution or waste natural resources.
72. At present, most of our electricity comes from the use of coal, gas, oil or nuclear power.
73. This power could be provided by the sun.
74. One percent of the solar energy that reaches the earth is enough to provide power for the
total population.

75. Many countries are already using solar energy.
76. Solar panels are placed on the roof of a house and the sun’s energy is used to heat water.
77. The energy can be stored for a number of days.
78. On cloudy days you can use solar energy, too.
79. Viet Nam has an advanced technology of solar energy.
80. Cars will use solar energy instead of gas by the year 2030.