4. announce/ denounce/pronounce
I don't know how to this word.
The minister's action was in the newspaper.
The invention of the microchip a new generation of computers.
5. attain/ maintain/ retain/ sustain/obtain/detain/ contain
Mankind has been trying every means to the balance of nature.
I'm determined to my purpose at any cost.
The foundations were not strong enough to the weight of the house.
Her memory everything she reads.
Further information can be from our head office.
I was in the police station as a suspect.
This book all the information you need.
6. ascribe/describe/prescribe/subscribe/inscribe/proscribe
The police asked me to exactly how it happened.
He his success to good luck.
I told the jeweler to the ring with my name.
The sale of certain drugs is by law.
I to several magazines.
The law heavy penalties for this offence.
答案：
1. pronounce, denounced, announced
2. maintain, attain, sustain, retains, obtained, detained, contains
3. describe, ascribes, inscribe, proscribed, subscribed, prescribes
