Williamhascuthissmoking_____tofivecigarettesaday.
A
cut down “削减，减少 ”;cut sth. down to “ 把⋯⋯ 减到(什么程度) ”，是固定搭配，而且符合题意。
Thedriverpulled_____atthetrafficlights.
It‘s_____mypowertomakefinaldecisiononthematter.
Hewasvery_____togo，buthehadnochoice.
Iwilldotheclearingifyousee_____thelunch.
Hedrovefastandarrivedanhour_____ofschedule.
