单选题After he was promoted&nbs

问题补充：

单选题Afterhewaspromotedtothepresentposition,heisnotsohardworkingashe______.A.was used toB.used to beC.was used to beingD.used to

答案：

B解析考查的是不定式的省略。as后面引导的是比较状语从句，且该从句存在省略，即：he is not so hardworking as he used to be hardworking= he is not so hardworking as he used to be。句意：在他被晋升到目前的职位后，他不再像他过去那样勤奋了。