Several of these washers and dryers are out of orderand ________A.need to be repairingB.require that they be repairedC.repairing is required of themD.need to be repaired
网友回答
D解析本题考查动词的用法比较。need在表示“主语需要被……”时,一般有两个句型：need to be done和need doing．reguire也有此用法并可用于reguire sb．to do sth．