Rivers, lakes and seas may be polluted by all of the following except ________.
A: oxygen
B: acid rain
C: fertilizers
D: waste material
A: oxygen
B: acid rain
C: fertilizers
D: waste material
举一反三
- Lakes, rivers and underground water supplies have all been badly polluted by lightly regulated industry.
- Many lakes and rivers ________ by industrial waste. A: A have polluted B: B have been polluted C: C had been polluted D: D has been polluted
- Many lakes and rivers have been ________by industrial waste. A: pollutes B: polluted C: pollution
- Many lakes and rivers have been( )by industrial waste. A: damaged B: injured C: polluted D: destroyed
- Many lakes and rivers have been ________by industrial waste. A: polluting B: ruined C: crashed D: polluted