改错。

( )1. ―What is Lily?  ―She's my sister.           

                   A   B                 C           D

( )2. ―Is that a ball pen?―No, that isn't.           

               A        B                          C    D

( )3. It's time to go to home.            

            A    B   C        D

( )4. This is you mother I think.           

             A   B  C                 D

( )5. ―What the time? ―It's five. ___     

                   A    B    C               D

下列关于藏传佛教表述正确的是（）。

A.主要有五个教派

B.其经典主要是梵文记录

C.主要有六个教派

D.在西藏的发展一般分为前弘期和后弘期