CHOOSE THE, WORD OR PHRASE (A, B, C OR D) THAT BEST FITS THE BLANKS...

1. Choose the, word or phrase (A, B, C or D) that best fits the blank

space in the following passage:

Are you looking for a cheap, clean, effective (21)_________ of power that doesn’t cause

pollution or waste natural resources? Look no further than solar energy (22)_________

our Sun.

This power could be provided by the Sun. One percent of the solar energy that reaches

the Earth is enough to provide power for the (23) _________ population.

Many countries are already using solar energy. Solar panels are placed on the roofs of a

house and the Sun’s energy is used (24) _________ water. The energy can be stored for

a number of days; so on (25)_________ days you can use solar energy, too.