补写出下列句子中的空缺部分。(1)在《归去来兮辞》中,写自己回乡后喜话家常,与琴书为伴的是“_____________,_____________”。(2)《庄子·逍遥游》中以“朝菌”和“蟪蛄”为例来说明“小年”一词的两句是“_____________,_____________”。(3)《陈情表》中李密向晋武帝表达他将不惜为国出力和报答皇帝大恩德的两句是:“_____________,_____________”。 The government has taken some measures to solve the shortage of electricity, but it may be some time ______ the situation improves. A. since B. when C. before D. unless