As we all know，tigers and cats the same family of beasts.
A. belonged to
B. are belonged to
C. belong to
D. are belonging to
网友回答
A. belonged to
B. are belonged to
(答案→)C. belong to
D. are belonging to
解析：考查belong to用法。Belong 不及物动词属于，应归入的意思，常和介词to搭配使用，一般不用于被动语态。句意：众所周知，老虎和猫属于同一家庭的野兽。故选C。