单项选择题
______ with the size of the whole earth, the highest mountain doesn’ t seem high at all.
单项选择题 This will only______a further worsening of the situation in their country.
单项选择题 The population had______from about 8,300,000 in 1845 to less than 6,600,000.
单项选择题 The factory is said______in a fire two years ago.
