{{i}}quEstions 17 to 20 ArE BAsED on thE Following pAssAgE.At thE EnD oF thE pAssAgE, you will BE givEn 20 sEConDs to AnswEr thE quEstions. now, listEn to thE pAssAgE.{{/i}}

whAt CAn wE inFEr From thE pAssAgEA．Dogs hAvE A nAturAl instinCt to rEturn homE.
B．sEEing-Dogs somEtimEs mAy not oBEy its mAstEr.
C．Dogs ArE kEpt mostly As CompAnions For olD pEoplE.
D．guArDing Dogs AlwAys run FAst.