I have a dog .I don't have a dog. Do you have a dog?
用i造句。并变为否问和疑问
I have a dog .I don't have a dog. Do you have a dog?2014-07-14
i am a student . i amn't a student. Are you a student?2014-07-14
I am a student. I am not a student. Are you a student?2014-07-14
l love you. and you?2014-07-14
2014-07-14
