Plastic bags are provided for our conven
题型:选择题
问题:
Plastic bags are provided for our convenience but they have also______ the pollution of the environment. [ ]
A. adapted to
B. turned to
C. contributed to
D. looked forward to
Plastic bags are provided for our convenience but they have also______ the pollution of the environment. [ ]
A. adapted to
B. turned to
C. contributed to
D. looked forward to