According to the passage, people in London may prefer the Underground to their own cars due to ______.     

Câu hỏi :

According to the passage, people in London may prefer the Underground to their own cars due to ______.     

A  heavy traffic 

B cheap tickets  

C long distances   

D air pollution

* Đáp án

A

* Hướng dẫn giải

Phương pháp giải:

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