请问what do you think of this picture?

题目

请问what do you think of this picture?
-well,the house is nice,but the cows( )
A are'nt B.isn't选择A还是B
菲菲为什么选B

答案

B,
"the"crows
看作一个整体,而且根据前后一致原则(the house is nice)