• 2022-05-29
    Generally, air will be polluted _______ there are factories.
  • where

    内容

    • 0

      Polluted air is deleterious ______ human health. A: of B: to C: on D: for

    • 1

      The air in this area got A: to pollute B: pollute C: polluting D: polluted

    • 2

      ______ there are a large number of chemical factories, the air is likely to be polluted. A: That B: Where C: Once D: As

    • 3

      The air inside .a house on office building often has more contaminants()the heavily polluted air outside. A: than does B: as C: as some that are D: than that of

    • 4

      The polluted air in the city is badly ______ the health of the residents. A: danger B: endangering C: dangerous D: dangerously