《旧唐书·列传·卷三十九》
到中宗立为太子，王方庆兼检校太子左庶子。
及中宗立为东宫，方庆兼检校太子左庶子。
When Emperor Zhongzong was appointed as the Crown Prince, Wang Fangqing concurrently supervised the Crown Prince's Left Junior Attendant.
<s>[INST] Transpose the following Modern Chinese text into Classical Chinese: 到中宗立为太子，王方庆兼检校太子左庶子。 [/INST] 及中宗立为东宫，方庆兼检校太子左庶子。</s>
Transpose the following Modern Chinese text into Classical Chinese: 到中宗立为太子，王方庆兼检校太子左庶子。
user
及中宗立为东宫，方庆兼检校太子左庶子。
assistant