问题
单项选择题
There has been a positive response to the export promotion, ______ ( )
A.hasn't it
B.hasn't there
C.doesn't it
D.has there
答案
参考答案:B
There has been a positive response to the export promotion, ______ ( )
A.hasn't it
B.hasn't there
C.doesn't it
D.has there
参考答案:B