since-和for-练习题

用since和for填空1.______twoyears2._______twoyearsago3._______lastmonth4.______19995._______yesterday6._______4o’clock7.______4hours8._______anhourago9._______wewerechildren10.______shelefthere11)Wehavelearnedfivelessons（）thebeginningofthisterm.12)MrsLiaohasbeeninhospital（）lastweek.13)Ihavestayedatmyaunt’s（）twoweeks.14.HehaslivedinNanjing________theyearbeforelast.15.I’veknownhim__________wewerechildren.16.OurteacherhasstudiedJapanese_________threeyears.17.Shehasbeenawayfromthecity___________abouttenyears.18.It’sabouttenyears__________sheleftthecity.