we think it _____ that college students should master ____ one foreign languagea.necessary,at last b.necessarily,at firstc.necessary,at least d.necessarily,at best
问题描述：
we think it _____ that college students should master ____ one foreign language
a.necessary,at last b.necessarily,at first
c.necessary,at least d.necessarily,at best
答
C
we think it后面估计少打了个's,意思是认为有必要，形容词
后面从意思"至少"可知选c
答
C at least 至少 至少掌握一门外语
答
c.necessary,at least
think it cnecessary that认为有必要
at least 至少