A．secretly and vigorouslyB．openly and enthusiasticallyC……

单项选择题The writer thinks that the popular version of the wagon train is ______.

单项选择题According to this passage, the nineteenth century seems to be an age of ______.

单项选择题Most probably the writer of this article is a ______.

单项选择题We can infer from this passage that women at that time were often granted access to ______.

单项选择题A possible title of this passage is _______.