英语改错I start school when I was five.The classes were small___

英语改错
I start school when I was five.The classes were small___
and the teachers were friendly.At the eleven I went to___
other school.Things didn't go so well as before.I hated___
to study subject such as biology and physics and I___
got terribly marks in tests.My parents tried to teach me___
what I didn't understand,but it didn't help.I spent a lot of___
time reviewing,I failed all the exams but had to retake___
them a few months late.That was the worst year of my____
school life.But I never gave up.Now I am proud my___
career as successful engineer.