中国古代无数优美的诗篇赋予了月亮以不朽的生命。王维诗云:“明月松间照,清泉石上流”,张继诗云:“月落乌啼霜满天,江枫渔火对愁眠”,苏轼诗云:“明月几时有,把酒问青天”。上述诗句能反映景随情迁的心境,从哲学上看其原因是( )
—Did Alan enjoy seeing his old friends yesterday? —Yes, he did. He ________ his old friends for a long time.
—Will you go to the park now? —Not until I ________ my physics exercises.
Unfortunately, when I dropped in, Professor Smith ________, so we only had time for a few words.
—Does Liu Hui serve in the army? —No, but he ________ in the army for three years.
I feel sure I ________ her somewhere before.