7、lliancy of the moon and stars at the elevation,owing to the perfect_____of the atmosphere,was very remarkable. A.transparency B.opaque C.closeness D.absence2.The public work projects have not significantly_____the unemployment situation.
8、 A.facilitated B.modified C.softened D.alleviated 3.Urban____could no doubt be relieved somewhat by a reduction in public transport fares. A.jammi