my happiest and worst day!

What matters is your concerted effort to succeed in in your education. It's never too late, but the longer you wait, the more difficult it becomes to succeed.

I know, but I exerted the whole semester to study, I can't get the fair result. I am so frustrated. am I stupid? I don't know what I am thinking!

rache, You're probably like my student days. I was terrible at taking tests, although I knew the subject matter better than 50 percent of the students taking the test. I remember teaching some other students macroeconomics, because they had difficulty understanding the course. They ended up with a better grade.

Don't give up; the real reward is completing your education and getting that piece of paper that says you've graduated. After that, work harder than anybody else to achieve your goals.

The evaluation could have been a lot worse though. Your teacher obviously believes in you, which is definately a good sign.
Don't worry, I'm sure you're not stupid. When are you gonna take the test again?

If I failed, I have to restudy this course again next semester. I think Cicerone Imposter said right, I need calm down and try again. thanks for you all help, I feel much better. I think the problems may be I focus to the grade too much, and ignore what I really need to study. I feel it is not easy to be a student in Canada. it is a full time job, need to put all concentration on. I hope I can do well next time. aslo, I hope my professor will evulate me not noly from the tests.