问题
Today the forests are getting ____________, we must ________ down too many trees.
A:more and more, prevent people cutting
B:fewer and fewer, stop people cutting
C:smaller and smaller, keep people cutting
D:bigger and bigger, keep people from cutting
B:fewer and fewer, stop people cutting
C:smaller and smaller, keep people cutting
D:bigger and bigger, keep people from cutting
正确答案是：
