EROSION, WHICH WASHES AWAY VALUABLE TOP SOIL, CAN PREVENT BY PLANT...

Tiếng Anh Đề thi HK2 Tiếng Anh 10 năm 2016 - 2017 trường THPT Nguyễn Trãi - Hà Nội -

34. Erosion, which washes away valuable top soil, can prevent by planting trees and grass . A B C D (can be prevented)