have you finished reading the novel?A now BalreadyC yet Dbefore

问题描述:

have you finished reading the novel?A now BalreadyC yet Dbefore
为什么回答的答案这么不统一啊,希望说清楚点

选C Cyet 用于在完成时态中 B already不能用于疑问句中 A是表现在 D表过去