Read the following passage and mark the letter A, B, C, or D to indicate the correct word or phrasbest fits each of the numbered blanks.

A Safer Future with RENEWABLE ENERGY

Renewable energy sources like biomass, wind, solar and hydroelectric energy can meet theenergy demand as they (28)energy services based on locally available resources

words, renewable energy sources are plentiful and all around us. Sunlight and wind, for exampsources that are (29)being replenished. According to research by the United Nagreen energy sources currently supply from 15 to 20% of the world's total energy demand. Tdominated by biomass (mostly wood used for cooking and heating - especially in developingAfrica, Asia and Latin America) as well as large hydropower stations providing nearly 20%electricity supply provided by renewable sources.

Renewables are now not only available in most countries but also cheaper than fossil fuels.Whirenewable energy systems is looking increasingly likely as their costs (30)fossil fuels like oil and gas continue (31)_For example, the cost of electricity frefell by 85% between 2010 and 2020 (32)the costs of onshore and offshore win

56% and 48%, respectively. It is estimated that cheap electricity from renewable sources could provide 63

of the world's total electricity supply by 2030.

Question 28.

A. recycle

B. produce

C. provide

D. generate

Question 29.

A. constancy

B. constance

C. constant

D. constantly
Question 30.

A. dropped

B. have dropped

C. are dropped

D. drop

Question 31.

A. fluctuating

B. fluctuates

C. fluctuate

D. to fluctuate

Question 32.

A. so

B. while

C. despite

D. because