题目
During _____ century, the world population has already reached 6 billion.A. twentyB. the twentiethC. twentiethD. the twenty
During _____ century, the world population has already reached 6 billion.
A. twenty
B. the twentieth
C. twentieth
D. the twenty
题目解答
答案
B. the twentieth
解析
在英语中,表示世纪时,通常使用序数词,并且前面加上定冠词 "the"。例如,二十世纪应该用 "the twentieth century"。因此,根据这个规则,我们可以确定正确答案。