The necklace that she lost is very expensive. It’s of great ________ .
A. valuable
B. value
C. valueless
D. unvaluable
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There were ________ fish in the river in South America.
A. in danger
B. danger
C. dangerous
D. endanger
People were against slavery and fought for their ________ bravely.
A. free
B. freely
C. freedom
D. frees
What you said sounded ________ but in fact it was untrue.
A. reasonable
B. reasons
C. reasonless
D. unreason
Mr. Black is an ________ in the army, not an ________ in the government. You can not easily find him in his ________ .
A. official;officer;office
B. officer;office;official
C. official;official;official
D. officer;official;office