情景交际。 (______)1.Good-bye! (______)2.What's this? (______)3.How are you? (______)4.See you later! (______)5.How many pencil boxes do you have? A.I'm fine, thanks. B.See you! C.I have six pencil boxes. D.Bye-bye! E.It's a pencil box. A.I'm fine, thanks. B.See you! C.I have six pencil boxes. D.Bye-bye! E.It's a pencil box.