Thirty years ago William Harry was a poor boy . Now he is a respectable man . He is no longer _______A.that he used to beB.what he used to beC.the man who he used to beD.he used to be
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B解析考查表语从句。连接词What在从句中做used to be的表语。三十年前威廉是个穷孩子现在他是一位受人尊敬的人，他不是过去的样子了。