Just now, I entered the website “Topic for Today”. I feel interested in the report on middle school students’ _________(use) cell-phones on campus. In fact, more students now come to school with cell-phones. My schoolmates have different opinions. _________ think it is convenient to get in touch _________others with the cell-phone, _________also makes you feel safe especially in time of trouble. Besides it is nice to enjoy various functions of different cell-phones. Others think differently. _________, the cell-phone is not _________ must in school, as there are some IC phones, making _________ easy to call others. Second, many students often play e-games and send e-massages with their cell-phones, even in class, which will surely have bad effects _________ their study. What’s more, it will result _________ in a great waste of time and money. In my opinion, the cell-phone is a useful tool in our daily life. But it doesn’t mean we can use _____ (free) in school.