Question

Social attention should be paid          our earth from        .

1. A.
   to prevent; being polluted
2. B.
   to preventing; polluted
3. C.
   to prevent; polluting
4. D.
   to preventing; being polluted

Answer 1

D
解析：
考查固定结构以及被动语态。Pay attention to sth/doing sth注意…；第一空是被动语态；prevent sb (from) sth/doing sth阻止某人做某事；本题也是被动语态。句意：我们应该特别注意要阻止我们的地球被污染。