And i'm in class 3 这句子中“i'm ”的I要大写吗?

And i'm in class 3 这句子中“i'm ”的I要大写吗? I'm in class five I'm in class 3,grade 5. I m mike from catford middle school .I m in class five and I I'm in Class One with Daming and Lingling. 英语翻译Hi,I'm Lily.I'm in Class 1.There are sixteen boys and fo I'm in Grade two,Class one I'm in Class 5 ,Grade 1 I‘m in class Four grade I'm in Class Four ,Grade Seven . ①I'm in Class 1 I'm in the Class 1 那个句子是对的?②my father is bet I'm wounded and in