题目

公元前5世纪前后，中国和希腊都经历了一次文化大爆发时期。与中国相比，古希腊文化繁荣的独特原因是     A．经济发展较快B．邦国众多       C．民主政治发达    D．学者辈出 答案：CHe had left his key at school, so he had no choice but ________. [　　] A．wait for his mother to come back B．to wait his mother to come back C．wait for his mother come back D．to wait for his mother to come back