B: It is an apple.

B: No, .

B: It's an apple.

—____________

B: .

⑴Pass me a crayon.              A. Here you are.

⑵Pass me a pink crayon.          B. Not at all.

⑶Thank you.                    C. What colour？

⑷What colour？                 D. Brown

—_________.

—It's black.