college students are free to study____ them a.whatever is interested in
问题描述：
college students are free to study____ them a.whatever is interested in
college students are free to study____ them
a.whatever is interested in b.whatever which interests
c.whatever interesting d.whatever interests
答
选d.
理由：这里的whatever=anything that,也就是college students are free to study anything that interests them.