He drove fast and arrived an hour_____of schedule.
A、inadvanceB
aheadof“提前，预先”，aheadofschedule“比规定时间提前”，正合题意。本句意为“他开得很快，比规定时间早到了1小时。”inadvance“事先，提前”，后面不跟介词。infrontof“在⋯⋯前面”，表示位置，所以此处不合题意。
It‘s_____mypowertomakefinaldecisiononthematter.
Ifhe_____thestorekeeper‘sscissors，hewouldhaveforgottentobuyapair.
Hewasvery_____togo，buthehadnochoice.
Itseemsasifthesun_____roundtheearthsinceitrisesintheeastandsetsinthewest.
_____hespeakssoftlyisnoproofthatheiskind.
