I arrived in Canada in grade 6, I believe. I was attending a French-language school, but we mainly used English, and I didn't understand that language at all. Even though the students spoke French at school, outside the school, it was always in English. I spoke French, but they answered me in English. So I understood that, if I wanted to integrate into the school and have friends, I had to learn English.
On June 1st, 2010. See this statement in context.