Mobile phones are being more wide used. They're light in weight and easy to carry, offer fast and

                                             1. widely                                                              2. offering

convenient service for communication. The users use them for making phone call, sending short messages

                                                                                                            3. calls

and Internet-surfing. In recently years, mobile phones have become popular to middle school students.

                                 4. recent                                                           5. with

Quite a few use it to keep in touch with their families and friends, what, of course, was of great

                   6. them                                                           7. which                 8. is

convenience. However, I don't think it's good to do so. In spite of the advantages mentioned above, student

 users often waste a lot of time chat on the phone in their spare time. Some even cheat in exams. In addition,

                                        9. chatting

mobile phone bills spend their parents lots of money.

                        10. cost