谓语用单数还是复数6.纸和印刷术已经被应用很久了.Paper and printing______ ________ _
谓语用单数还是复数6.纸和印刷术已经被应用很久了.Paper and printing______ ________ _
two kinks of paper ...谓语动词用单数还是复数?
and 连接两个不定式 谓语动词用单数还是复数?
and连接两个不定式,谓语动词用单数还是复数?
each boy and girl后面谓语用单数还是复数
he and his parents谓语用单数还是复数?
a girl and a boy谓语用单数还是复数
the customs and culture 谓语用单数还是复数
when and where 谓语用单数还是复数?
more and more 谓语用单数还是复数
a piece of paper后的谓语动词用单数还是复数
2800 tons of paper 作主语,谓语用单数还是复数