are you looking for a cheap clean

C. pollution

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(Not make) ……such noise. My mother (sleep)…..

Read the paragraph and choose the best answer.

Are you looking for a cheap, clean, ............ (1) source of power that doesn’t cause …………(2) or waste natural resources? Look no further than thở solar energy from our sun. At present, most of our …..……(3) comes from the use of coal and gas, oil or nuclear power. This power could be provided by the sun. One percent of the solar energy that reaches the earth is enough vĩ đại provide………(4) for the total population. Many countries are already using solar energy. Solar panels are placed on the ……..(5) of our house and the Sun’s (6) ….is used vĩ đại heat water. The energy can be…………….(7). For a number of days, ví on cloudy days you can use (8)………. energy, too.

A. streets

B. grounds

C. roofs

D. suns

“Can you open the window?” Lan asked bu.

Lan asked bu.................

The air is polluted..........there’s too much traffic.

A. but

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B. therefore

C. because

D. however

Read the paragraph and choose the best answer.

Are you looking for a cheap, clean, ............ (1) source of power that doesn’t cause …………(2) or waste natural resources? Look no further than thở solar energy from our sun. At present, most of our …..……(3) comes from the use of coal and gas, oil or nuclear power. This power could be provided by the sun. One percent of the solar energy that reaches the earth is enough vĩ đại provide………(4) for the total population. Many countries are already using solar energy. Solar panels are placed on the ……..(5) of our house and the Sun’s (6) ….is used vĩ đại heat water. The energy can be…………….(7). For a number of days, ví on cloudy days you can use (8)………. energy, too.

A. lunar

B. wind

C. cloudy

D. solar

We should clean our classroom every day.

He suggest..............

Read the paragraph and choose the best answer.

Are you looking for a cheap, clean, ............ (1) source of power that doesn’t cause …………(2) or waste natural resources? Look no further than thở solar energy from our sun. At present, most of our …..……(3) comes from the use of coal and gas, oil or nuclear power. This power could be provided by the sun. One percent of the solar energy that reaches the earth is enough vĩ đại provide………(4) for the total population. Many countries are already using solar energy. Solar panels are placed on the ……..(5) of our house and the Sun’s (6) ….is used vĩ đại heat water. The energy can be…………….(7). For a number of days, ví on cloudy days you can use (8)………. energy, too.

A. eletric

B. electrical

C. electrician

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D. electricity