初一英语填空,At the ______ (begin) of the _______ (twenty) century,the _英语解答

初一英语填空,
At the ______ (begin) of the _______ (twenty) century,the world’s population was about 1,7 billion

人气：120 ℃　时间：2020-03-17 05:15:25

解答

beginning
twentieth
at the beginning of是个固定词组
前面有the,用序数词.twenty的序数词是twentieth.