(5)in1940winstonchurchillsucceededchamberlainasprimeminister,andthebritishairforcethwartedhitlersambitiontomakebritainafinishingtouchtohisconquest.in1941,hitlerturnedhislegionstowardsthesovietunion.

　　(6)in1941,theunitedstatesofficiallyenteredthewarafterjapanesesurpriseattackofpearlharbor.intheasian-pacificbat

　　tlefield,chinaperfor

　　(9)the1960switnessedthesexualliberationandthetremendouspopularityofthebeatles.