Social attention should be paid ______ o
问题:
Social attention should be paid ______ our earth from ______. [ ]
A. to preventing; being polluted
B. to prevent; polluting
C. to prevent; being polluted
D. to preventing; polluted
Social attention should be paid ______ our earth from ______. [ ]
A. to preventing; being polluted
B. to prevent; polluting
C. to prevent; being polluted
D. to preventing; polluted