A. THOSE B. ANYONE C. SOMEONE D. EVERYONECHỌN TỪ THÍCH HỢP ĐIỀN VÀ...

12. A. those B. anyone C. someone D. everyoneChọn từ thích hợp điền vào chỗ trống:We are all slowly (1)………. the earth. The seas and the rivers are (2)……….. dirty to swim in.There is so much smoke in the air that (3)……… . unhealthy to live in many of the world’s cities. In one well-known city, for example, poisonous gases (4)………. cars pollute the air so much that traffic policemen have (5)………. oxygen masks.