The first European settlement on Australia began in _______.

单项选择题It is implied in the passage that _______ the probability of creative idea emergence.

单项选择题According to this passage, ideas invented by a computer _______.

单项选择题The author thinks that creative thinking is _______.

单项选择题This passage is mainly about _______.

单项选择题Former social ceremonies that used to mark adolescence have given place to _______.