Doctors have tentatively concluded that cell phones may

Câu hỏi :

Read the following passage and mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the questions.

A. change their users' temperament

B. damage their users' emotions.

C. change their users' social behaviours.

D. cause some mental malfunction

* Đáp án

D

* Hướng dẫn giải

Đáp án D

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