old is ?the Great Wall?РWhat does Simon want to know about the Great Wall?РCan we walk all of ?the Great Wall?Р…РWhere is ?the Great Wall?РThe Great WallРHow long is the Great Wall?РHow old is ?the Great Wall?РWhat do you find about ?the Great Wall?РWhere is the ?Great Wall?Р…РIt’s more than forty thousand li long.РIt’s more than two thousand years old.РIt’s in Beijing.РHow long is the ?Р40 0 0 0 LiРforty thousand LiР,Р20 0 0 0? kilometresР,Р1 KilometreР=Р2 LiР1 LiР=Р0.5 KilometreРHow old is the ?Р2 0 0 0 years oldРtwo thousand years oldР,Рmore thanРHow long is the Great Wall?РIt's more than forty thousand li long.РHow old is the Great Wall?РIt's more than two thousand years old.Рis the River Thames?Р346kmРIt’s 346 kilometres long.РHowРlongРis Zhanqiao Pier?РIt’s long.Р312mРAsk and answer.