Test period

Yesterday, I finished the last test during test period and began spring vacation. I think I'll get good scores on my tests because I studied for ten hours everyday.
I have to study English from now on in order to be prepared for studying abroad. I have studied English for more than ten years, but I can't still speak and write well. I don't know how to improve my English skills faster.

Test period

Yesterday, there was the last test during the test period ended and the spring vacation had begun. I think I'll get a good scores (or marks) on for the tests because I had been studying for ten hours every day.
I have to study English from now for because I want to studying abroad. I have been studyingied English for more than ten years already, but I still can't  speak and write well. I don't know how to improve (or "can I improve) my English skills in future sooner.

Test period

Yesterday, the last test during our test period ended and spring vacation began. I think I'll get a good score on the tests because I studied for ten hours everyday.
I have to study English more from now on to prepare myself for studing abroad. I have been studying studied English for more than ten years, but I still can't still speak and write well. I don't know how to improve my English skills sooner faster.


Good job :)
Almost perfect with just a few grammar mistakes.