---The girl is practicing English ?---Yes she is. She is good at English.A. is sheB. isn

问题补充：

---The girl is practicing English, ?

---Yes, she is. She is good at English.

A. is she

B. isn’t she

C. is the girl

D. doesn’t she

答案：

A. is she

(答案→)B. isn’t she

C. is the girl

D. doesn’t she

解析：考查反义疑问句，The girl is practicing English,是肯定句，后应用否定形式来反问，句中的动词是is，所以反问时用isn’t she，选B。