—Who called me this morning when I was out?     

 —A man calling ______ Robert.

          A. him                     B. himself                     C. his                  D.不填

I know nothing about the accident except _____ I read in the paper.

A. that    B. for  C. what     D. 不填

In China, _____ car is increasingly becoming ________ popular means of transportation．

I often have conversations with John over ______ telephone, while keep in touch with Tom by ______ letter.

    A. 不填；the      B. 不填；a      C. the；不填     D. the; a

It is often said that          teachers have          very easy life.

A．不填；不填          B．不填；a                C．the; 不填               D．the; a