HAVING FREE TIME ON MOTHER’S DAY MEANS NOTHING TO MANY MOTHERS.CHOO...

4. Having free time on Mother’s Day means nothing to many mothers.

Choose the word or phrase that best fits the blank space in the

following passage:

from; need; house; collect;

lighting; to; provide; homes;

About twenty percent of the world’s present energy already comes from the sun in one

form or

another. Special devices have already made available to place on the roofs of houses and

flats to (1)_________ the sun’s rays. Thousands of these devices are now being used to

(2) _________ power in homes throughout the United States while more than a million

solar water - heating units have already been built in (3)_________ in Japan, other

purposes for which solar energy is at present being used include the separation of salt

(4)_________ seawater.

For most people in developing countries, the (5) _________ is not for air conditioners or

central

heating but for the cheap ways of cooking food, drying crops, and (6)_________ homes.

Supply the correct Tense or Form of the Verbs in parentheses: