How to correct these sentences?
Students are asked to write a composition on a debate. It's about whether it is necessary for middle school students to chat on line.
Here are some of the sentences in the composition : "Some students thought it could keep in touch with friends." "They thought it would waste time, and they could use this time to study." "They found some students used this way to copy homework." "It can keep the friendship. It will be good for studying, and I will be better."