【導(dǎo)讀】Crosstheroad,Crosstheroad.Onourwaytoschool.Stopatthelights,Stopatthelights.Onourwaytoschool.Whatisit?→Itisasign.What’sonthesign?Itisarule.Wheredowehaverules?Wheredowehaverules?Wheredowehaverules?Wheredowehaverules?Wheredowehaverules?Wheredowehaverules?Wemustkeepquiet.thelibrary.Wemust/mustn’t___whenweare____.5Wemust………6Wemustnot………5Wemust……6Wemustnot……1.in/on/at. 2.mustdo. 3.mustnotdo=mustn’tdo. Recitethetext. WorkbookP45