200+ câu trắc nghiệm Tiếng Anh Du lịch và Khách sạn có đáp án - Phần 7

Choose the correct word for the following definition: an amount of a substance that is produced and sent out into the air that is harmful to the environment

25/25

Choose the correct word for the following definition: an amount of a substance that is produced and sent out into the air that is harmful to the environment

stopover

baggage

emission

take-off

Giải thích

Chọn đáp án C.