(B)

    Jason is in the library．He wants to read a book about dinosaurs．He says to the librarian．"I am looking for a book about dinosaurs．Do you have any books about dinosaurs?" "Yes, we do．"The librarian says．"Where are they?" Jason asks．"Come with me．"She says．

    The librarian shows Jason a big book．She says，"Here is a book about dinosaurs．Is this what you are looking for?" Jason is very happy．"That's it! Thank you!"

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