I think that the-- century will bring us more hopes.twenty-onetwentieth-firsttwenty-firsttwentiethA.twenty-one B.twentieth-first C.twenty-first D.twenyieth-one

问题描述:

I think that the-- century will bring us more hopes.twenty-onetwentieth-firsttwenty-firsttwentieth
A.twenty-one B.twentieth-first C.twenty-first D.twenyieth-one

选c

要填一个序数词,A是一般的数词,B和D表达错误,C是正确的序数词表达.因为前面有定冠词the,所以要填序数词.