According to the writer, people shoul____. A. only use mobile phones in urgent cases B. only use mobile phones in medical emergencies C. keep off mobile phones regularly D. never use mobi

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According to the writer, people shoul____.

only use mobile phones in urgent cases

only use mobile phones in medical emergencies

keep off mobile phones regularly

never use mobile phones in all cases

Giải thích

Đáp án A

Giải thích: Dòng 2 đoạn 5: “Use your mobile phone only when you really need it.”