1.用适当的宾语从句引导词填空：Icouldn'tfindout______ruleritis.SoIgaveittotheteacher.2.IwishI()longerthismorning,butIhadtogetupandcometoclass.A.couldhavesleptB.sleptC.mighthavesleptD.haveslept3.I'venot

　　1.用适当的宾语从句引导词填空：Icouldn'tfindout______ruleritis.SoIgaveittotheteacher.

　　2.IwishI()longerthismorning,butIhadtogetupandcometoclass.

　　A.couldhavesleptB.sleptC.mighthavesleptD.haveslept

　　3.I'venotdecided()tojoinyouyet.

　　A.ifB.whatC.whichD.whether

　　4.Myfathertoldme_____________________.(熟能生巧)

　　5.脑筋急转弯：Howlongisashoe,usually?