英语中three fourths of the materials 用单数还是复数?

英语中three fourths of the materials 用单数还是复数? three parts of the article谓语用单数还是复数 I think three fourths of the materials I listened to at the 65 percent of the raw materials的谓语数是单数还是复数? 还有one "Nearly three fourths of the earth"做主语时,谓语用单还是复啊? three quarters of the staff作主语,谓语动词用单数还是复数啊? three million tons of rubbish 谓语用单数还是复数 three piece of后用名词的单数还是复数 英语中a pair of 后用单数还是复数? three fourths of the homework have finished Three-fourths of the buildings was destroyed. Three fourths of the homework ( )toda