This is ________ apple. It’s ________ big apple.

A. an, an                     B. a, an                       C. an, a

This is ________apple.
A. a                     B. two                C. an

This is ________ apple. It’s ________ green apple.

A. a, an                    B. an, a                    C. an, an

1 

This is ________apple.

A. a                      B. two                C. an

This is         apple.

A. a               B. the            C. /             D. an