【C16】A．suitableB．involvedC．attachedD．familiarized

【C4】A．suitableB．appropriateC．capableD．indispensable

【C8】A．revolvedB．involvedC．revivedD．resolved

【C8】A．linkedB．involvedC．associatedD．combined

A．involvingB．involvedC．involve

【C14】A．concentratedB．involvedC．restrainedD．restricted

【C6】A．resolvedB．involvedC．evolvedD．revolved