Papermoney
问题详情: Papermoney________foroverathousandyears. A.havebeenused B.hasbeenused C.areused D.isusing【回答】Bmoney为不可数名词,因此谓语用单数,又由“for…years”可知用完成式,所以选B。知识点:主...
问题详情: Papermoney________foroverathousandyears. A.havebeenused B.hasbeenused C.areused D.isusing【回答】Bmoney为不可数名词,因此谓语用单数,又由“for…years”可知用完成式,所以选B。知识点:主...