问题

The girl has learnt to play the piano an early age.
A:is he; Yes, he is
B:isn’t he; No, he isn’t
C:has he; Yes, he has
D:has he; No, he hasn’t;
B:isn’t he; No, he isn’t
C:has he; Yes, he has
D:has he; No, he hasn’t;
正确答案是: