Câu hỏi:

Read the following passage and mark the letter A, B, C or D on your answer sheet to indicate the correct word or phrase that best fits each of the numbered blanks from 31 to 35. WATER

Water is one of our most precious resources; to (31) ______ it simply, without water there would be no life. Unfortunately many of us seem to have forgotten this fact, and as a result the world is facing the danger of running out of water. The actual amount of water on earth has changed (32) ______ since the time of the dinosaurs. The problem has been caused by people’s misuse of our water supply. This not only means that we have polluted our rivers and seas, but also that we are (33) ______ a great deal of this precious resource. Unfortunately, the destruction of the rain forests has made this problem worse since much of the rain (34)______ falls is lost because it runs off into the sea. The population of the earth is increasing daily (35)______ it is vital that we find a solution to this problem before it is too late.

Water is one of our most precious resources; to (31) ______ it simply, without water there would be no life.