I hear one third of the books in wuhan library___new.A is B are C was D were 理由 和句意说清楚

I hear one third of the books in Wuhu library after（ ）new.let's borrow some. I hear one third of the books in wuhan library___new.A is B are C was D were 理由 和句意说清楚 one third of one-third of z I hear one third of the books in wuhan library___new.A is B are C was D were我们老师说答案是C,可我觉得答案是B, I like neither of the two books.Please showme (a third) one.这里为什么要填a third? i have finished one third of the work and the rest___left for you 主谓一致 i have finished one third of the work and the rest___left for you 主谓一致 i have finished one third of the work and the rest___left for you 主谓一致 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 ? 这两道题容易混淆,有点迷糊..1.I think ________of the materials I listende to at the beginning of the exam ________easy.Atwo thirds,is B.two thirds,are为什么选A2.I hear one third of the books in JIANGSU Liarbry_______new.Let's borrow so one third one third one third I hear one of them________ a baby.填has,tohave,are having ,have I hear one of eleohents has a baby.能否改成I hear eleohents of one has a baby.（1）若改错了,请将I hear one of eleohents has a baby.换成说法不同,意思相同的句子（2）、I hear one of eleohents （has/have） a baby.选has还 I hear one of the koalas_____a babyA there's B there're C has D have I hear one of the koalas -------- a baby .A.there`s B.there are C.haveD.