2012年12月英语四级完形填空冲刺题（9）_第3页

　　74.

　　[A] trade

　　[B] trend

　　[C] treat

　　[D] track

　　75.

　　[A] on

　　[B] to

　　[C] of

　　[D] for

　　76.

　　[A] included

　　[B] involved

　　[C] revolved

　　[D] inclined

　　77.

　　[A] signals

　　[B] functions

　　[C] formularies

　　[D] patterns

　　78.

　　[A] informative

　　[B] knowledgeable

　　[C] familiar

　　[D] attractive

　　79.

　　[A] off

　　[B] up

　　[C] out

　　[D] on

　　80.

　　[A] relieve

　　[B] release

　　[C] dismiss

　　[D] discover