The(poison) ___ gases from the cars have polluted the air.
举一反三
- The waste gas of cars has only badly polluted the air.
- Electric vehicles will save a lot of air ______ because there will be no emission of CO2 in the air. A: pollute B: polluted C: pollution D: polluting
- Ways must be found to prevent the poisonous gases ________ polluting the air. A: in B: on C: from D: at
- We must find ways to prevent the poisonous gases ________ polluting the air. A: in B: with C: from D: of
- The air inside a house or office building often has higher concentrations of contaminants ____ heavily polluted outside air. A: than does B: more C: as some that are D: like of