认为人不是社会行动物而是群居动物的学者是（）。
参考答案：赫胥黎
The student had no choice but _____ his teacher ____ the mistake he had made.
A．to apologize to , for
B．to apologize, for
C．apologizing for, to
D．to apologize for, for
因而强力，______乃伤，______乃坏。
