They arrived at a farmhouse,in front of ______sat a small boy.标答是填which,为什么不能填that呢?

They ___ home very late.A.arrived B.arrived at C.arrived in D.got to when they (　　）there ,they saw many people. A.arrived in B.arrived at C.got to D.got. They ___Center Park at nine this morning.A.got at B.got to c.arrived to D.arrived They ___the school very early.A.get to B.arrived in C.reached to D.arrived at they arrived at last 用英文解释 Finally,they arrived at their home. they all arrived at the river they arrived a quarter to eleven.a quarter to eleven前为什么没有加at They arrived at a farmhouse,in front of___sat a amall boy .Awhom Bwho Cwhich Dthat They arrived at a farmhouse,in front of which sat a small boy. They arrived at a farmhouse,in front of which a small boy sat They arrived there_____5:00____a cold morning A.at in B.on at C.at on D.on in They ____a village and lived there.A.arrived at B.left for 为什么? ___they arrived early at the sport,they never missed the flight.A If B becau They arrived early___a Tuesday morning. A.on B.at C.in D.of (应选哪一个?） They ___ the hotel at 11.A.reached B.arrived C.got D.arrive Whenthey arrived at the crossroads, they went the wrong_____.A.directionB.pathC.streetD.way they——the office at nine yesterday morning.A reached B arrived C went