An orange is ________.

A. orange

B. an orange

C. the orange

D. oranges

An orange is ________．

[　　]

________ orange is ________ orange．

1. A.
   A, the
2. B.
   An, an
3. C.
   An, /
4. D.
   /, an

        orange is on the table.
A、An                    B、A                 C、Some

        orange is on the table.

A、An                    B、A                 C、Some