It'snotgoodtocomelate____school.Theyarrived____Guangzhou____themorningofMay25.A.at;iIt'snotgoodtocomelate____school.Theyarrived____Guangzhou____themorningofMay25.A.at;inB.in;inC.in;onD.at;duringMyfatherreturnedat10o'

　　It'snotgoodtocomelate____school.Theyarrived____Guangzhou____themorningofMay25.A.at;i

　　It'snotgoodtocomelate____school.

　　Theyarrived____Guangzhou____themorningofMay25.

　　A.at;inB.in;inC.in;onD.at;during

　　Myfatherreturnedat10o'clock____ofJune15.

　　A.inthenightB.bythenightC.onthenightD.atnight

　　Heoftenmistakesme__mybrother.

　　A.toB.asC.forD.with

　　ChinahasbuiltaGreatGreenWall___thenorthenpart___thecountry.

　　A.to;inB.across;ofC.across;onD.at;of