Many students now have a new use for the Internet-helping them with their homework. But different
people have different ideas about it.
Some students agree with it.
They sometimes don’t know the answers to the problems, so they have to turn to
the Internet. They think they can learn from other people. At the same time, it’s easy and it saves time.
However, not all the students welcome this. Many students think simply copying the answers won't improve
their abilities and it may make students stop thinking.
I think students should first think over the problems by themselves. If
we use the Internet properly,it
could be a good way to study.
这篇段落里的每个it分别指什么，还有this指什么？
