The teacher ______ be in the office; maybe he is in the library.A、mightB、couldC、may notD

______ the help of my English teacher, I would not have succeeded in the speech contest.A．

Which of the following words can NOT be used to complete "______ the teachers came"？A．Ofte

The California Teacher Study found the greatest reduction in breast cancer of about______p

Concern was expressed about the greater ________ of work being imposed on teachers.A

Teachers need to be aware of the ______, intellectual, and physical changes that young adu

The teachers in our university has a ______ of backgrounds.