1、本网站免费注册后即可以下载，点击开通VIP会员可无限免费下载！
2、资料一般为word或PPT文档。建议使用IE9以上浏览器或360、谷歌、火狐浏览器浏览本站。
3、有任何下载问题，请联系微信客服。
扫描下方二维码，添加微信客服
easy heavy
early
popular
expensive
taller cheaper
tallest
cheapest
nicer
larger
later
nicest
largest
latest
bigger
fatter
biggest
fattest
easier
heavier
earlier
easiest
heaviest
earliest
more popular
more expensive
most popular
most expensive
直接加er,est
加r, st
双写，加er,est