用A~E将下列句子排列成一段完整的对话。
Hello, Lucy! You look worried. What’s the matter? ( )
What is in your bag? ( )
Yes, it is. Thank you! ( )
Hi, Tom! ( )
You’re welcome! ( )
I lost my bag. It’s big and red. It’s my favorite one. ( )
Is this your bag? ( )
There is a book and two pencils in the bag. ( )