-where is my pen.It's not ___I have left it.

-where is my pen.It's not ___I have left it. where is my pen?It's------the corner Where is my pen?It's ( ) 空格处填啥? Where is my pen?It's_________(那边) it isn't your pen,is it?A Yes,it's not mine B No,it's my fri i am not sure where i should have left it It is not my pen.It must be Where is my pen,Tom?It's just here under your n____,Granny! this is( )my pen.it's( )pen.( )里填空 where is my pen?I can't find it anywhere. 请根据首字母拼写单词 Where is my pen?I can't find it.Look!it's on the -Where is my bag?-____.A:Yes,it is B:No,it is C:It`s not you