When someone receives medical treatment from a doctor, we call him ________.
A. roommate
B. patient
C. foreigner
D. housekeeper
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One inch is ________ to 2.54 centimeters.
A. equivalent
B. the same
C. due
D. passive
The reward is given for ________ in the face of the enemy.
A. possessor
B. violence
C. bravery
D. behavior
This attack was a severe ________ to him.
A. injury
B. wound
C. harm
D. destroy
It was ________ of you to do such a thing.
A. foolish
B. fool
C. foolishly
D. difficult