翻译下列句子。
(1)They’re listening to music.
                        
(2)They’re playing chess.
                        
(3)What are they doing?
                        
(4)Look at these girls.
                        
(5)They’re getting on the bus.
                         
(6)Look at the people on the lake.
                        
(7)Let’s get on the bus.
                        
(8)They are playing football.
                        
(9)What is the elephant doing?