V. Complete the following passage with words in the box(1.25M) ( V. Hoàn thành đoạn văn sau với các từ trong ô trống (1,25M)

V. Complete the following passage with words in the box(1.25M) ( V. Hoàn thành đoạn văn sau với các từ trong ô trống (1,25M)
powers / renewed / alternative / resources / fuels / sources
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 use up all the present (3)________________of oil and gas. The world’s coal reserves should last longer but, onced used, these can not be (4)__________________. It is important, therefore, that we should develop such (5)_________________sources of energy as solar energy as well as water and wind power, classed as renewable energy