This is an illness that can result in total blindness _____ left untreated[ ]

16In no place of China_______little about the economic development nowadays

下列句中划线词的活用与例句相同的一项是（ ）例句：项羽遂西

Pointing to the house on ____ roof grew lots of bush, the old man told me that was where I would stay.

Could I hang out with my friends-___. You have to prepare for your math test.