I have a unusual hobby.哪里错

I have got a hobby I have a hobby复数形式 Lucy and Lily have same hobby. 哪里错了? Lucy and Lily have same hobby.到底哪里错了? Who have a knife?I have one.哪里错了 It‘s .（unusual ）film I have ever seen. It is the most unusual film I have ever seen. 英语翻译I have a friend named Mike .Mike's hobby is collecting a We are good friend,we have the same hobby.哪里错了 I have not a chair to sit哪里错了 i am go to have a concert错在哪里 I have a eraser 这句话错在哪里?