【C8】A．deficientB．decentC．sufficientD．extreme

The house allocated to them was pleasant and______.A．spaciousB．wideC．sufficientD．wretched

【C12】A．indispensableB．responsibleC．sufficientD．dominant

【C4】A．preciseB．prominentC．extremeD．proper

【C3】A．proficientB．efficientC．sufficientD．elaborate

A．polarizationB．polarityC．divisionD．extremity

Extremely refined behavior however cultivated a