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

GSM系统的上行频率范围是（），下行频率范围是（），TDMA的帧长是（），信道速率是（）。