we all know that —can be used to make mang things ,so it's our duty to protect—

问题描述:

we all know that —can be used to make mang things ,so it's our duty to protect—
a:woods;wood b:woods;woods c:wood;wood d:wood;woods

选D
我们都知道木头能用来做很多事情,所以保护森林是我们的责任
前面是木头,后面是森林