as air pollution has beengreatly reduced,this city is still----- c.a good placeto be lived in

问题描述:

as air pollution has beengreatly reduced,this city is still----- c.a good placeto be lived in
d.a good placeto live in 地方不是被住的吗 怎么不用被动的

to后面表目的,说明这是个居住的好地方,并不是被动.不定式通常有表目的的作用