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。
Thereisn‘tmuchmilk_____isleftinthebottle.
Two-thirdsofhisproperty_____lostinthefire.
Ifhe_____thestorekeeper‘sscissors，hewouldhaveforgottentobuyapair.
Beingextremely_____tothecold，Idonotlikeskating.
_____hespeakssoftlyisnoproofthatheiskind.
