In the school,about twenty percent of the students __ from American nowA areB is C comesD canme
问题描述：
In the school,about twenty percent of the students __ from American now
A are
B is
C comes
D canme
答
A
答
选 A are
分数作主语时用单动还是复动不是看分数本身，而是看of后的名词。如果该名词是复数即用复动，如果是单数或不可数名词则用单动。
eg：Two third of the apple is water.这个苹果的三分之二是水分.
Two third of the apples are bad.这些苹果的三分之二是坏的 .
答
答案是：A 给你个口诀：I 用am ； you用are ；is连着it he she ；单数一律用is ；复数一律都用are
答
are
答
答案是A
be from=come from,来自.
这题的主语是students是复数,所以用are.
句子意思为,现在,我们学校大约20%的学生都来自美国.