WHAT WOULD HAPPEN IF OUR ENVIRONMENT_____

6. - TONG HOP BAI TAP VE TU LUAN TONG HOP BAI TAP VE TU LUAN
TONG HOP BAI TAP VE TU LUAN TONG HOP BAI TAP VE TU LUAN

6.

What would happen if our environment_____?

A. polluted

B. were polluted

C. is being polluted

D. is polluted