HowTwoGreatConflictsHelpedtoChangeEurope
NinetyyearsagoonasunnymorninginNorthernFrance，somethinghappenedthatchangedB.retainandEuropeforevenAthalfpastsevenonthemorningofJuly1,1916，whistles(哨子)blewandthousandsofBritishsoldierslefttheirpositionstoattacktheirGermanenemies.Bytheendoftheday,20，000ofthemweredead，andanother30，000woundedormissing.TheBattleoftheSomme，_________(51)itiscalled，lastedforsixmonths.When,itended，125，000Britishsoldiersweredead.Theyhadgainedfivekilometersofground.