When and where to build the new factory ____ yet.A.is not decided B.are not decided C.has not decided D.have not decided標(biāo)準(zhǔn)答案是A。請(qǐng)問(wèn)C項(xiàng)為什么不符合呢？為什么不能用完成時(shí)呢？

熱心網(wǎng)友

c是主動(dòng)的,顯然不行 要改的話是have not been decideda 的decided做定語(yǔ),主系表就可以了