I　went to school.       you didn't metion what you did at school .
And came back for test.       and came back from test.
Ｔhat point of test was bad!     you should say the result of my test was bad.
I have to study very hard!

I went to school and we have test .
and when i came back from school
The result of test was bad.
I have to study very hard.

添削します！

Today I went to school and the test came back.

My score was bad!

I have to study very hard!

 

日本語でまとめてみます。

I　went to school.

「学校に行った」というのは間違いではないですが、ちょっと短すぎるかもしれません。

添削者のみなさんがそうおっしゃっています。

たとえば "Today I went to school and took the test." とすれば、「今日学校に行ってテストをうけた。」となります。学校に行って何をしたのか、何があったのかを文に盛り込むといいでしょう。

And came back for test.

主語は何ですか？私が主語なら"I came back" すなわち「私は戻った」ということになります。

「テストが返ってきた」という場合には "The test came back."が正しい表現です。戻ってきたのはテストで、それが主語ですから、文の一番前にもってきてください。

二番目の添削者が、And で文をはじめてはいけないと言っています。これは英文を書くときのルールのようですので、And と書いてしまったら、最後に消しておきましょう。日本人としてはそれが変に感じることもありますが、大丈夫なんです。

Ｔhat point of test was bad!

テストの点数ですね。英語ではよく"score"を使います。具体的に何点という場合には"points"でもよいのですが、（70点なら "70 points") 点数がよい、わるいという場合には "My score was good/bad) といいます。

I have to study very hard!

Me, too! この文は完璧ですね。

akiho's notebook entry: May 30, 2011

I went to school. --->This sentence is correct but same as above person try adding a little more sentence to it.
And I just came back for from a test. --->Same as above person "AND" is not used when starting a sentence.
Ｔhat point of test was bad! My test score was very bad!
I have to study very hard! --->This sentence is correct try adding a little more to the sentence but not much.

akiho's notebook entry: May 30, 2011

I went to school.  This sentance is grammatically correct but a bit short. You might want to add what you did at school? Ex. I went to school and had a test.  Because "went" is past-tense, you have to use "had" and not "have" as the other correction suggests.
And  I just came back for from a test.  It's generally considered "incorrect" to start a sentance with "And".
Ｔhat point of test was bad! The score on the test was bad!
I have to study very hard! I have to study much more!    --or--   I need to study that subject much harder!