Theny want to have a good musician____the concert.填什么介词?

Theny want to have a good musician____the concert.填什么介词? The children want a ball.Please give one to theny.这句话哪里错了嘻嘻 I want to have a want to have a long I want to have a Do you want to have a friend Want to have a future with me? I want to have a home. Do you want to have a lunch, want to have a good rest I want to have a picnic. I want to have a watch yours. i want to have a girlfriend I want to have a gilefriend I want to have a m___ plane sally,does,to,want,have,a,sweaer? I WANT TO HAVE A BEAUTIFUL WISH. i want to have