![](https://lstatic.shangxueba.com/sxbzda/h5/images/m_q_title.png)
M: What are you doing? W: Trying to get this wine stain (污渍) out of the carpet. M: Hang
M: What are you doing? W: Trying to get this wine stain (污渍) out of the carpet. M: Hang on. There's some soda here. It should take the stain right out. W: Really? Hey, ______
A.it is really functioning.
B.it is really working.
C.it is really playing.
D.it is really influencing.
![](https://lstatic.shangxueba.com/sxbzda/h5/images/tips_org.png)