People can help solve the problem of pollution by______.A. urging their governments to control litter and wasteB. cutting down the use of oil and other oil productsC. reducing unnecessary buying, over-consumption and careless disposal of wastesD. making a
题目
People can help solve the problem of pollution by______.
A. urging their governments to control litter and waste
B. cutting down the use of oil and other oil products
C. reducing unnecessary buying, over-consumption and careless disposal of wastes
D. making anti-pollution advertisements