I.Read the following text care fully and choose the correct answer A, B, C or D for each of the gap Solar energy is a powerfu

I.Read the following text care fully and choose the correct answer A, B, C or D for each of the gap
Solar energy is a powerful (1)of energy in fact, the sunlight that shines on the earth in just one hour sould met world energy (2)..tor an entire year. We can use solar power in two (3).ways:as a heat sairce, and as an energy source. People have used the sun as a heat source for thousands of years. Families in ancient Greece built ther home to get the most sunlight during the cold winter months. The sun has produced energy(4)billions of years. Solar energy is the solar radiation that reaches the earth.
1. A. means B. way C. method D source
2. A. demand B. request C. consumption D. production
3. A. difter B. differences C. different D. differenthy
4. A. at B. in C. for D. since