A:Good morning,David.How are you?B:Fine ,thanks,and you?A:Not very well.B:what is wrong?A:I lost my pen.B:i am sorry,why not ask C,she may know.A:did you see my pen?C:no,i did not.but i know D find a ... A:Good morning,David.How are you?B:Fine ,thanks,and you?A:Not very well.B:what is wrong?A:I lost my pen.B:i am sorry,why not ask C,she may know.A:did you see my pen?C:no,i did not.but i know D find a ...