_____the house Mr.Li has been broken into ?

      A.When was it that     B.When has     C.Has      D.had

—Why is Mr. Li so happy this morning?

   —Because he was honoured with a(n)______ for excellence in teaching.

   A. present    B. gift                 C. award            D. reward

______ Mr. Li is now waiting for you on ______ first floor.

A. A; a                          B. The; a   C. The; /             D. A; the

Mr. Li, who _____ his whole life to education, is retiring next month.

A. devoted      B. is devoting     C. has devoted     D. had devoted

—Why are most of us unable to study English well，Mr.Li?

—You ______.But you ______ too little attention to it.

A．could；pay B．will；attach

C．would；referD．can；devote