A.willing | B.not sure | C.certainly | D.not certainly |
A.unhealth | B.unhealthy | C.healthy | D.Health |
A.unknowing | B.unknown | C.known | D.Untrue |
A.pleasing | B.unfortunate | C.unfit | D.Unpleasant |
A.unusual | B.seldom | C.never | D.Uncommon |
A.common | B.usual | C.average | D.General |
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