补全短文，每空一词。

Dear May,

      My (1) n_____ is Guo Feng. I (2) c_____ from Chongqing, I'm twelve, I speak (3) C_____ 

 and I can speak a little (4) E_____, I (5) w_____  to learn it well, so I want a pen pal to (6) h_____

 me, I know you want to learn (7) C_____, I  (8) t_____ we can help each other.  Please write to 

me soon.       

                                                                                                                                 Yours,  

                                                                                                                                  Guo Feng

CD-ROM是一种( )的外存储器。

A．可以读出，也可以写入

B．只能写入

C．易失性

D．只能读出，不能写入