【I'mafraidhe'smoreofatalkerthanadoer,whichis_____herneverfinisI'mafraidhe'smoreofatalkerthanadoer,whichis_____herneverfinishesanything.[]A.thatB.whenC.whereD.why为什么不选Awhat可以吗而且如】

　　I'mafraidhe'smoreofatalkerthanadoer,whichis_____herneverfinis

　　I'mafraidhe'smoreofatalkerthanadoer,whichis_____herneverfinishesanything.[ ]A.that

　　B.when

　　C.where

　　D.why

　　为什么不选A what可以吗 而且如果为定语从句不应该是thereasonwhy