— There are still many old city walls in Xi’an ?—Yes there are.A. are thereB. aren’t the

问题补充：

— There are still many old city walls in Xi’an, ?

—Yes, there are.

A. are there

B. aren’t there

C. are they

D. aren’t they

答案：

A. are there

(答案→)B. aren’t there

C. are they

D. aren’t they

解析：

试题分析: 反义疑问句一般遵循前肯定则后否定，前否定则后肯定的原则，并且疑问部分时态，人称要与前文保持一致。There be举行的反问，用助动词加there形式，前文表示肯定含义，系动词为are，故选B。