阅读理解，判断正误。

    The Newtown School will have a concert on Children's Day. Ann，Ken and David will play together at the concert. Ann will play the piano. Ken will play the guitar. David will play the drums. Mocky will not play at the concert，but he wants to go to it.

    The children and their parents are now at the concert. It is going to start，but David is not there. He is not well today. Who will play the drums? Ken and Ann are worried. Mocky is very happy because he can play the drums. Can he play well?