This Wendnesday, I went to an English school.

This Wendnesday, I went to an English school.

In the every lesson, my/the tutor asks if anyone has a question.

It is "asks" and in the present state as it happens every lesson.

I asked about a phrase I didn't understand.

about/regarding ____ = ＿＿＿について

A (female) classmate sitting next to me answered my question almost immediately/quickly.

"soon" describes a vague (曖昧）and unspecific time in the future.
You can hear a person say "I will attend to you soon" and have the person only serve you much later.

But I thought that was absolutely that was wrong. I thought. /// "That's absolutely wrong," I thought

Normally, when you use "I thought" at the end of the sentence, it is after using quotation marks.

"What a wonderful restaurant", I thought. (Direct speech)
Indirect speech -> I thought that it was a wonderful restaurant.(Indirect speech)

"I'll be away on a trip tomorrow", said Tom. (Direct speech)
Tom said that he would be away on a trip the day after. (Indirect speech)

I didn't get it and today I posted the question box (on the internet, on a website) called"Yahoo obachan no chie bukuro", which means grandmother's wisdom bag.

Yahoo!知恵袋はインタネットよりも、サイトです。
"on the internet"はこの文に書かなくてもいいですよ。
"I didn't get it" is a bit informal.
By the way, the English version of the website mentioned is called "Yahoo Answers".

I often use it when I have some questions.

Everytime I got a correct answer from a user (almost immediately), I feel satisfied.

We don't usually use "immediately" because we know it cannot be really immediate no matter how fast an action is (haha).
We usually use "almost immediately".

As I thought/As I have expected, her answer was wrong.

As I thought/As I have expected = 思ったとおり/ やっぱり

Next lesson, should I tell her that her answer was wrong?

Standard question format : Should I ____ ?
Should I go to the library today ?
Should I take the discounted tofu (option 1) or the tofu without the discount(option 2) ?

Which is kinder? -> どちのほうが優しいですか？