Question 2: When the first air pollution laws were established in England in the fourteenth century, air pollutants were limited to compounds that could be seen or smelled - a far______ from the extensive list of harmful substances known today.

A. cry                                 B. tear                                C. sweep                            D. distance

1000 câu khó mục tiều 9+ Tiếng anh ôn Tốt nghiệp THPT Quốc Gia (Lesson 13)