The teacher told his students to make the most of the opportunities ____ hand.
A. in
B. of
C. on
D. at
He let the team _____ by not trying hard enough.
A. down
B. off
C. on
D. in
Have you made ____ your mind what courses you are going to take yet?
A. in
B. of
C. up
D. from
She learned the rules of the game step ______ step.
A. in
B. by
C. on
D. off
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