--How many cakes can I have, Mum?--None, dear. They ________ for your father.A.prepareB.preparedC.have preparedD.were prepared
网友回答
D解析考查被动语态。prepare在这里是及物动词“准备，预备”之义。They在这里指的是cakes，应该是prepare cakes for sb.属于prepare sth. for sb./sth.的结构，动作的承受者作了主语，故要采用被动语态。