this S/N is not available.Please check if it is the right one.中文是什么

this is not will`s this S/N is not available.Please check if it is the right one.中文是什么 is this ( ) watch no,it's not ( ) this is a event of this product s/n This is not Mary's dress.(变为一般疑问句） This question is not difficult. It's very s______. 这个句子对不对：This bag is not Tom's. This is my new b .It's not very b , this is not this is not Is not this this is not a this.is.not.a. IS this your cup?NO,it's not mIS this your cup?NO,it's not m______? is this your bicycle,david?no,it's not _____.it's helen's. 补全对话 This is Liu Ling.I ( )this morning,but he's not in. 1.not my this coat be 连词成句 2.填单词1.Bob,this is Mary.She is G( ).2.What`s your job?P( )3.c()()4.dr()ver 5.n()()se Thanks 1.Is this your english book?no,it's no.2.this not is your pen is white 改错