阅读下面短文，按照句子结构的语法性和上下文连贯的要求，在空格处填入一个适当的词或使用括号中词语的正确形式填空。
Zhou Yan, a 12-year-old student, went to
the doctor because he had "mobile phone disease (疾病)". A
{#blank#}1{#/blank#} of teenagers are getting it because more and more are {#blank#}2{#/blank#}
(use) mobile phones.
Zhou got his mobile phone five months{#blank#}3{#/blank#}
He spent too much time {#blank#}4{#/blank#} (play) with his mobile phone. He sent
{#blank#}5{#/blank#} (message) to his friends with it all the time. Zhou started to do
{#blank#}6{#/blank#} (bad) in exams than before. His mom got very angry with him, but he
didn't stop Playing {#blank#}7{#/blank#} his arms hurt (疼痛).
Yang Ling, a doctor, says that {#blank#}8{#/blank#} someone
uses his mobile phone too much, he might get "mobile phone disease".
If teenagers find {#blank#}9{#/blank#} (they) arms or fingers hurt, they should go to the
doctor as soon as possible. Yang says playing phones is {#blank#}10{#/blank#} (healthy)
for the mind and the body so that teenagers should use mobile phones less.
