5．________adj. too full of people or things 6．________n．a number of things that are placed on top of each other 7．________n．a strong feeling of wanting to hurt or criticize someone 8．________vt. to damage sth such as paper or cloth by pulling it hard or letting it touch sth sharp 9．________vi. to break open，especially because of pressure from inside 10.________vi. to look angrily at someone for a long time 答案　1.instruct　2.attain　3.polish　4.cosy　5.crowded　6.pile　7.anger　8.tear　9.burst　10.glare