单句改错。( ) 1. What is your birthday? A B

问题：

单句改错。

(       ) 1. What is your birthday?             

                 A          B     C

(      )2. He birthday is October tenth.         

              A                       B        C

(      )3. Tina's sister is five year old.          

               A       B               C

(      )4. —How are you?                  

                    A    B   C

            —I'm nine years old.

(      )5. My brother is fifth years old.       

              A                   B    C_________

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