--- Would you mind giving your advice on how to improve our efficiency?
--- If you make most of forty-five minutes classes day after day, there will be
_______ switch in grades.
A. /; / B. the ; a C. /; a D. the; /
--- Would you mind giving your advice on how to improve our efficiency?
--- If you make most of forty-five minutes classes day after day, there will be
_______ switch in grades.
A. /; / B. the ; a C. /; a D. the; /
B