Many dog owners treat their pets like human beings if they do not have children of their

问题补充：

Many dog owners treat their pets like human beings, if they do not have children of their own.

A. absolutely

B. especially

C. eventually

D. extremely

答案：

A. absolutely

(答案→)B. especially

C. eventually

D. extremely

解析：B考查副词。句意：许多宠物狗的主人对待它们就像对人一样，尤其是那些没有子女的人。故选especially“特别是；尤其是”。absolutely“绝对地，完全地”；eventually“最终”；extremely“极其地”。