下列各句中均有一处错误，请选出并改正。

(     ) 1. I have cat. It's cute.                                                               

                 A    B          C   

( ) 2. The giraffes is tall.                                                                  

                        A     B  C  

(     ) 3. I'm come from China.                                                             

              A     B              C     

( ) 4. The elephants has a long  nose and a short tail.                           

                        A                 B                      C   

( ) 5. Where the dog?                                                                       

                A     B    C