—Tina，could you please play      piano for me while I’m singing?

—With pleasure．

A．a                  B．an                C．the

-Tina, could you please play ________ piano for me while I'm singing?

-With pleasure．

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

-Tina, could you please play ________piano for me while I’m singing?

-With pleasure．

1. A.
   a
2. B.
   an
3. C.
   the
4. D.
   不填