排列句子(英语）

（）A.Oh,yes,it is.It's in the book. Thank you.

( ) B.No,it isn't.

( ) C.That's all right.

( ) D.Excuse me, where's my ruler?Do you know?

( ) E.No,I can't see it in my desk.

( ) F.Is it in the book?

( ) G.Oh,sorry,I don't know.Is it in your pencil case?

( ) H.Is it in your desk?

D.H.E.G.B.F.A.C

DGBHEFAC