题目

Choose the words or expressions and complete the passage( 选择最恰当的单词或词语完成短文)A father sent his 5-year-old son lo learn how to play the piano.A few months passed, and then a very famous pianist came to their town. They___1__ to get two tickets to one of his concerts.On that day, the lather sat down with his son. However, it was too difficult for the child to just sit doing nothing, so he walked away quietly.*When the stage (舞台) lights became dark, the father found that his son was no longer with him.___2__, he found his son was on stage and walking towards the pia不等式x+1≥0的解集是__．