in the 1960's 和in the 1960s 有什么区别我做题是碰到的,两个选项都出来了,

in the 19th 和in the 1980's 英译中 in the 1950s in the 19th century in 1960's 和in the 1960s的区别 in the 19th是什么意思 through the air和in th air的区别 1900s和19th century区别in the late 1900s和in the late 19th century有什么区别?哪个是18世纪?`哪个是19世纪``?越详细越好``答的好给积分``` the singer is staying in qingdao from the 5th to the 10th .then she 's _______shanghai Is your birthday （in） May?No,it's (on) the 14th of August填in和on的依据是什么? in the 20th century,in the 1950s,这两个时间词的前面为什么要加 the? in the early part of the 19th century 和 at the beginning of the 19th century 的区别. in 1900s 和 in the 1900s那个对? in 1720s和in the 1720s的区别 in the 1960's 与 in the 1960s 区别 in the 16th century什么意思 in the 20th century是什么意思 Europe in the 18th century是什么意思 Realistic novel in the 18th century in the 1980s,in the 1980's和in 1980s的区别