A.RECYCLE B.PRESERVE C.KEEP D.USE XII. CHOOSE THE WORD OR PHRASE (...

10. A.recycle B.preserve C.keep D.use

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

following passage:

There is now increasing concern about the world’s energy (1) ... particularly about

those involving fossil (2) ...In less than a hundred years we shall probably (3)... all

the present (4)... of oil and gas. The world’s coal (5)... should last longer but, once

used, these cannot be (6)... It is important, therefore, that we should develop such

(7)... sources of energy as solar energy as well as water and wind (8)... , classed

as (9)... energy. Until these energy (10)... are widely used, it is important for the

developed countries to reduce energy consumption as much as possible.