Read the pasage and choose the best answer

Light pollution is not (24) ______________ water or air pollution. Moreover, it is the type of pollution

(25) ______________ more in cities than in rural areas. In the past, we could sit out at night and gaze at glittering stars in the sky and light from objects in the out space. Nowadays, cities are covered  

(26) __________ lights from buildings, streets, advertising displays, many of which direct the lights up into the sky and into many unwanted places. The real problem is that it is very wasteful to apply light to almost everything at night. Millions of tons of oil and coal (27) ______________ to produce the power to light the sky. Eye strain, loss of vision and stress are what people may get from light pollution. (28) ______________ light at night can harm our eyes and also harm the hormones that help us to see things properly.

24. A. as serious as                 B. more serious           C. as serious than        D. more serious as

25. A. that occur                     B. that occurred          C. that occurs              D. this occurs

26. A. with lights of                B. with lights to          C. from lights with      D. with lights from

27. A. used                              B. are used                  C. using                       D. is used

28. A. Too much                     B. Too many               C. Too long                 D. So much