用英语翻译一下这一小段课文

I had already tried very hard, but the teacher still kept us in detention late at night. He was really fearful!

I had tried my best, but still been kept late by the teacher, who is so terrible.

I had already tried my best ,but our teather still asked me to stay till very late ,I felt frightend!

I have worked very hard, but teachers still remain to us very late, he really terrible

东东呢？