I ____go to see my mother every other week A.sometime B.some times c.sometimes D.some time

题目

I ____go to see my mother every other week A.sometime B.some times c.sometimes D.some time
sometime和some time的用法有点搞不清,

答案

some time 在未来的某时,一段时间；一些时间；经过若干时间
sometime adv.改天；来日；在某一时候 adj.以前的；某一时间的
some times 好几次
sometimes adv.有时,间或
C