Some experts believe it is the grandparents who for the spoiled child.A. are to blameB. a

问题补充：

Some experts believe it is the grandparents who for the spoiled child.

A. are to blame

B. are to be blamed

C. should blame

D. are blamed

答案：

(答案→)A. are to blame

B. are to be blamed

C. should blame

D. are blamed

解析：考查固定词组：be to blame“应受责备，对…负责”，注意这个词组是主动式表示被动，也就是不能用被动，句意是：一些专家相信应该对宠坏孩子负责。选A。

考点:考查固定短语