80.
　　[A] relieve
　　[B] release
　　[C] dismiss
　　[D] discover
　　81.
　　[A] immediately
　　[B] artificially
　　[C] consistently
　　[D] automatically
　　82.
　　[A] available www.Examw.com
　　[B] valuable
　　[C] practicable
　　[D] acceptable
　　83.
　　[A] promise
　　[B] primary
　　[C] premise
　　[D] private
　　84.
　　[A] essential
　　[B] confidential
　　[C] substantial
　　[D] potential
　　85.
　　[A] even
　　[B] when
　　[C] because
　　[D] although
　　86.
　　[A] occur
　　[B] incur
　　[C] rescue
　　[D] recur