1.friend(形容词) friendly
2.terrify(形容词) terrified
3.use(过去词) used
4.sleep(形容词) sleeping
5.quiet(副词) quietly
6.use(现代分词) using
7.easy(副词) easily
8.memory(动词) memorize
9.pronounce(名词) pronunciation
10.development(动词) develop
11.insect(复数) insects
12.chew(现在分词) chewing
13.paint(现在分词) painting
14.music(指人的分词) musician
15.spider(复数)spiders