Question

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英作文の添削をしてもらいたいです！主に文法・語法
お題は“When we browse the Internet, we are always exposed to customized information. What do you think about that?”です。

I think it is a bad thing to be exposed to customized information. First,for example,if you only read news sites offering one side of perspectives,your opinion about the news would be full of biases.This prevents you from making right divisions. Second, though in modern life,there are some advantages like cutting down our time to search around the Internet to acquire information, but I believe it is important to have many points of view and customized information would have a bad effect on having a wide range of perspectives because it keeps providing you with information that you are interested in. (100/100)

個人的な疑問としては冒頭のbad thingが口語的すぎるなと言う気がしてます。何かに言い換える方法が見つからなかったです。。
追記)解答はbad と書いてあるので良いらしいです。