英语:短文改错

1.It is [[[over]]] 3 years now since i began studing English.
2.As first i found it very difficult.i couldn't [[[make]]] most of sounds right,
3.spell the words correctly and remember the rules of the [[[grammers]]].
4[[[Under]]] the heip of my English teacher and classmates,i have made
5.many [[[progresses]]].Now i am getting on well with my English study.
6.Three year's study [[[has]]] taught me that one can't learn English
7.well without [[[working]]] hard.we shouid do more intersting listening and speaking.
8.both in and out of [[[class]]].At the same time, we must pay enough
9.attention to reading as well as writing. Only [[[in]]] this way can we.
10.get the best result in the short [[[possibly]]] time.