Since he is over eighteen,he _ join the army .A.can also B.too can C.also can 每个说下原因

问题描述:

Since he is over eighteen,he _ join the army .A.can also B.too can C.also can 每个说下原因

A
其它的都不行,这是因为also ,too这类的词,必须放到can的后面!所以不对!只有
a