What your teacher said obviously means that you should not remain neutral. For example, is it wise to make friends online? Although you have written your opinion, you may write that online dating sometimes has shortcomings. For example, making friends online is easy to be deceived. Isn't your opinion unclear/? I'm also preparing for the fourth year of college. The teacher gave such an example. Is it wise to write an argumentative essay on this topic and make friends online? If your opinion is positive, you should write a few sentences in the first paragraph to lead to the topic. In the second paragraph, you should write your opinion. Even if you have a bad opinion about online dating, don't write it (unless you use a comparative argument). You should list three points to affirm that making friends online is a good thing, and of course, you should also write them out, otherwise it will be difficult to write 200 words.

If there are any problems, we can discuss them. I'm also preparing for the war.