The ____ bell has been repaired by an _____ engineer.

Is this the girl______ whom I can turn for help? Is she good at this subject?

"I wish you’d look at me when I’m trying to speakto you!" the teacher said .

I’m sorry ______that bad news.

8.The ________ goal of the book is to help bridge the gap between research and teaching, particularly the gap between researchers and teachers.