if you are not in it by yourself.奇怪了.纳闷

Are you by yourself? Believe in yourself!You are _____ to decide how to do it by if it is not you yourself,please go 分析以下句子的语法if not by others,then by you yourself if you want to known that you can do it by yourself you are not a child____,you can do something by yourself.A.n You are not going to do it by nickel-and-diming me in the bu you can think it by yourself If you can not ____(mend) your bike yourself,have it ____(re you are not yourself什么意思 shucks,you are not shabby to yourself ask me if you are not s___how to do it