改错。下列句子均有一处错误，请指出并改正。

1. Australia has beautiful beach.                                                                            

         A       B        C        D

2. Kangaroo live in Australia.                                                                                 

         A         B  C      D

3. The U.K.'s flag is same colour as the flag of the U.S.!                                          

              A          B    C              D

4. What are you want to do on Sundays?                                                                

      A     B           C     D

5. The president of United State lives in the White House.                                    

             A                       B               C               D

0~15共16个处理单元用单级PM2-3互连网络连接，第5号处理单元将连至第（）号处理单元。