英语综合填空：Mobile phones are becoming more and more popular not only with grown ups but also..

英语综合填空：Mobile phones are becoming more and more popular not only with grown ups but also..
Mobile phones are becoming more and more popular not only with grown ups but also with students.However ,they also (1)b____ a problem for middle schools in the past few years.Some children have got mobile phones (2)a__ Christmas or birthday gifts ,and more will still want them .
Many people like SMS because it is easy and quick .Some parents felt happy because they could get in touch (3)w____ their children .But some teachers said mobile phone use was a distraction(分心的事) to students during school (4)h____ and some students (5)e___ rse phone messages to cheat during exams .A new study (6)s____ that some teenagers send messages in class even (7)h_____ their fingers because they can't stop (8)s______ SMS .
Many teachers (9)s_____ that students shouldn't have mobile phones at school .They can use the telephone in the teachers' office (10)i_______ .
（5）后面是use