79.

　　[A] totally

　　[B] usually

　　[C] mainly

　　[D] actually

　　80.

　　[A] part

　　[B] entirety

　　[C] chapter

　　[D] section

　　81.

　　[A] claimed

　　[B] said

　　[C] classified

　　[D] graded

　　82.

　　[A] inclusive

　　[B] inclinable

　　[C] conclusive

　　[D] complicated

　　83.

　　[A] break

　　[B] elaborate

　　[C] define

　　[D] unlock

　　84.

　　[A] purposes

　　[B] degrees

　　[C] stages

　　[D] steps

　　85.

　　[A] such

　　[B] so as

　　[C] so

　　[D] such as

　　86.

　　[A] By

　　[B] In

　　[C] On

　　[D] To