BEFORE GOING TO BED,MRS. TUYET USUALLY READ SOMETHING OR WATCHES S...

30. Before going to bed,Mrs. Tuyet usually read something or watches some programs on television. A B C DIV. Read the passage and choose the correct answer to fill in the blank.These days , it is ...(31)... to open a newspaper without reading about the damage we are (32) to the environment. The earth is being threatened and the future looks bad. What can each of us do? We can not (33) our polluted rivers and seas overnight. Nor can we stop the (34) of plants and animals . But we can stop worsening the problem while scientists search for answers and laws are (35) in nature's defence.