79. [A] biochemically

　　[B] physically

　　[C] spiritually

　　[D] materially

　　80. [A} between

　　[B] among

　　[C] alike

　　[D] into

　　81. [A] unalike

　　[B] unaware

　　[C] unlikely

　　[D] unknown

　　82. [A] concludes

　　[B] excludes

　　[C] dissolves

　　[D] involves

　　83. [A] explosion

　　[B] exposure

　　[C] extension

　　[D] expansion

　　84. [A] endangered

　　[B] inspired

　　[C] harmful

　　[D] frustrated

　　85. [A] established

　　[B] created

　　[C] constructed

　　[D] built

　　86. [A] isolate

　　[B] apart

　　[C] refrain

　　[D] remove