問題補充：
單選題
After he was promoted to the present position, he is not so hardworking as he ______.A.was used toB.used to beC.was used to beingD.used to
網(wǎng)友答案：
熱心網(wǎng)友 1樓
B解析考查的是不定式的省略。as后面引導(dǎo)的是比較狀語從句，且該從句存在省略，即：he is not so hardworking as he used to be hardworking= he is not so hardworking as he used to be。句意：在他被晉升到目前的職位后，他不再像他過去那樣勤奮了。
