Many lakes and rivers have been ________by industrial waste.
A: pollutes
B: polluted
C: pollution
A: pollutes
B: polluted
C: pollution
举一反三
- 5. Many lakes and rivers have been ________by industrial waste. A: smog B: pollution C: polluted D: smoging
- 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: damaged B: injured C: polluted D: destroyed
- Many lakes and rivers have been ________by industrial waste. A: polluting B: ruined C: crashed D: polluted
- Many lakes and rivers have been ( )by industrial waste. A: public B: put C: polluted D: pollutE