单选题
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.
【正确答案】
B
【答案解析】
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