The air is naturally contaminated by foreign matter such as plant pollens and dust

5/40

Mark the letter A,B,C or D on your sheet to indicate the word(s) CLOSEST in meaning to the underlined word(s) in each of the following questions:

The air is naturally contaminated by foreign matter such as plant pollens and dust.

polluted

occupied

filled

concentrated

Giải thích

Đáp án: A

Giải thích: Contaminated = polluted (bị ô nhiễm).

Dịch: Không khí bị ô nhiễm tự nhiên bởi các chất lạ như phấn thực vật và bụi.