one third of student are还是is girls?

one third of student are还是is girls? one third of one-third of z one -third of the student __(be)girls根据所给单词适当形式填空 one third of population和one third of country的谓语为什么不同?为什么one third of population用ARE,而one third of country用IS ? student in grade one 还是student of grade one one third one third one third 英语句子：是one third them还是one third of them?这两个有什么区别? There is one third student ____ girls.是用is 还是用 are?why? 英文短语one-third of的用法one-third of ＋名词 后be动词的单复怎麽用? One-third of the students in this class are girls.这句中的主语为什么是One-third? one percent of 100 sheep 是单数还是复数?RT那么 one third of 3 sheep march is the third month of a year.___ ___ is the third one of a year? one- third less than how much is 4 multiplied by the difference of one-half and one third? I like neither of the two books.Please showme (a third) one.这里为什么要填a third?