Question

6. According to South Korean Military Service Law,            between 20 to 30 years old to undertake two years of military service. (compulsory)

根椐《韩囯兵役法》，20岁至30岁的健康男性有义务服两年左右的兵役。

Answer 1

6. it is compulsory for a healthy male考查形式主语的用法。It is +adj. + (for sb.) to do sth.和It is +adj. + (of sb.) to do sth.两个句型中，for sb.和of sb.要注意区别，在使用时要注意如果形容词是用来描述sb.的品质特点时，用of sb.;但如果形容词仅仅是描述事物，用来说明to do sth.时，用for sb.。