以what benefits can music bring us 为题写一篇不少于80词的短文.

Music is important in our lives。It has a good many advantages。It can bring us a large quantity of pleasure。When we feel tired,soft and happy music can make us happy and relaxed。When we feel nervous and music can make us at ease。Music in some way is our good friend。We need it。We can listen to it while doing our work and study。Before going to bed,it can make us fall asleep very soon。很高兴为你解答!请及时采纳哦!多谢你的问题! 再问： It has a good many advantages。 这句中a是否可以去掉？