—Jack, did you see my son Harry just now?
—No，Mrs. White. I _______computer games.

Mrs. White became a teacher in 1985. She _____ for twenty years by next summer.

A. will teach    B. would have taught    C. has been teaching    D. will have been teaching

 Mrs.White showed her students some old maps                   from the library．

  A to borrow    B to be borrowed    C borrowed    D borrowing

Mrs White found her husband ________by letters and papers and________ very worried.

Three days after Mrs White’s _______ necklace was found, she was _____ it.

   A. lost; robbed                        B. missed; robbed of

   C. missing; robbed of                  D. lost; robbed