Find the word which is not the same with the othes in a group

II. Find the word which is not the same with the othes in a group.

4.                  A. throw                     B. recycle                  C. pollute                   D. cut down

A. air                          B. water                     C. soil                         D. pollution
Ai làm nhanh nhất đánh giá 5 sao nha!