用所给的介词填空介词：in,on,at,of,to,for1.Thisistheclassroomwhichhestudiedmorethantenyearsago.2.Thefamousplayercanplaytwochessgamesonetime.3.Heandhistwinbrotherhavealotcommon.4.I'llcomeconditionthatmysist

　　用所给的介词填空

　　介词：in,on,at,of,to,for

　　1.Thisistheclassroomwhichhestudiedmorethantenyearsago.

　　2.Thefamousplayercanplaytwochessgamesonetime.

　　3.Heandhistwinbrotherhavealotcommon.

　　4.I'llcomeconditionthatmysisterisinvite,too

　　5.Hearrivedattheairport6:30,justintimetocatchhisplane.

　　6.Youshouldgooutplayinginsteadworkingindoors.

　　7.Weareparticularlygratefultoyouyourtimelyhelp.

　　8.ThepresidentofthiscollegewillpayanofficialvisitChinainMay.

　　9.Hehasformedthehabitsavingmoneyandhassetasideasum.

　　10.Heissointerestedhisgameastoforgeteverythingelse.