17. If you are in _______ position of _______ teacher, will you allow your students to play computer games all day long?
A. /; a B. a; / C. the; / D. the; a
18. It turned out that the examination that I paid special attention to was ______ not difficult.
A. specially B. usually C. actually D. especially
19. —Why didn’t you say hello to her last night?
—Well, I stopped and smiled when I saw her, but she ______ me and walked on.
A. ignored B. refused C. denied D. missed
