强化练习：()1.Childrengetgifts_Christmasand_theirbirthdays.A.on;onB.at;onC.in;inD.in;on()2.-Thereisnothing_tomorrowafternoon,isthere?-No.Wecanhaveagameoftabletennis.A.onB.inC.outD.up()3.Alotofstudentsinourschoolwereborn_March,1981.A.inB.atC.onD.since()4.Hesuddenlyreturned_arainynight.A.onB.atC.inD.during()5.Mygrandfatherwasborn_Oct.10,1935.A.onB.inC.atD.of()6.Thetrainisstarting_fiveminutes.A.inB.atC.forD.still()7.Mikedoeshisexercises_seven_theevening.A.on;toB.at;inC.by;ofD.at;on()8.Childrenwakeupveryearly_themorningofChristmasDay.A.inB.onC.forD.at()9_acoldwintermorning,Imetherinthestreet.A.InB.OnC.AtD.For()10Ithappenedtobeverycold_themorningofoursportsmeeting.A.atB.onC.withD.of()11.Whydidyougetupsoearly_thismorning.A.onB./C.atD.in()12.HewenttoShanghai_September3,1991andcameback_acoldmorninglastyear.A.in;onB.on;inC.on;onD.in;in()13.Lucywasborn_thenightofMay12,1984.A.onB.inC.atD.to()14.MrsBrowncametoChina_1996.A.onB.ofC.to,D.in()15_themorningofNovember20,1915,theworkerscametoChicagotoshowtheirmourningofJoeHill.A.OnB.InC.OnD.At()16.Annmoved_Hangzhou_September,1992.A./;inB.to;inC.to;onD,in;in()17.Theystartedoff_anautumnafternoon.A.duringB.atC.inD.on()18.Heoftengoes_school_sixthirty_themorning.A.for;to;inB.to;at;inC.to;for;atD,for;at;to()19.Hearrived_Shanghai_9:30_March5.A.at;in;atB.to;on;atC.in;on;atD.in;at;on()20.TheEnglishteachertoldmetogetthere_halfpastten.A:inB.atC.onD.of答案：BAAAAABBBBBCADBADBDB