Take your time and have __________ fun.
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The man was put __________ for murder.
A. into prison
B. in prison
C. in the prison
D. at the prison
Hitler was __________ before World War II.
A. in the power
B. in a power
C. in power
D. in powers
Please keep __________ eye on the little boy.
A. one
B. the
C. a
D. an
Hiking means traveling __________, usually with a backpack.
A. on foot
B. on the foot
C. on feet
D. by foot