1.above在上--below在下Wewereflyingabovetheclouds.我们在云层上面飞行。Thesunsankbelowthehorizon.太阳落到了地平线下。2.after在后--before在前Wellleaveafterlunch.我们将在午饭后动身。Hearrivedbeforeme.他比我先到。3.all全部--none全无Theyveeatenallofit.他们全吃光了oneofyourbusiness.不关你的事。4.alone单独地--together一起Hedinesalonemostnights.大多数晚上他都独自进餐。Wellhavelunchtogether.我们将一起吃...