I have a eraser 这句话错在哪里?

I have a eraser 这句话错在哪里? I have an new eraser.哪里错了 Do you have an eraser?Yes,I do.I only have a small. 英语中,同样表示数量1的a和an该怎样区别?比如:I have a pencil.:I have an eraser.(这句可能不对,不看也罢):The teacher erases the sentence with an eraser. I have-----pen and ----eraser.1、a；a 2、a；an 3、an a I have an eraser同义句 i have an eraser.改为否定句 I have an eraser改为特殊疑问句 have i new may look a eraser at your )的连词成句是什么 I have a ruler ahd an eraser.(改为否定句） Could I have your eraser for a moment?(做肯定回答)____ _____ 同义句转换：I have no eraser.I have （ ）（ ） eraser. I have a orange这句话错在哪里 I have a red long pencil 这句话那儿错? I have a Englih book 这句话哪里错了 I have a apple这句话对吗 I wish I will have a coat这句话对不对? I have an eraser 对an eraser提问一定过要写过程