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。
My wallet is nowhere to be found.I_____it when I was on the bus.
Hisarticleisbetterthan_____intheclass.
The girl who found the ring received a generous_____of five pounds.
Beingextremely_____tothecold，Idonotlikeskating.
Theteachergave_____theexaminationpaper.
