谁知道下列单词的比较级于*cheapnew closefriendly expensivepoper

问题描述:

谁知道下列单词的比较级于*
cheap
new
close
friendly
expensive
poper

cheap--cheaper--cheapest
new --newer--newest
close--closer--closest
friendly --friendlier--friendliest
expensive--more expensive--most expensive
proper--properer--properest

cheaper est
new er,est
closer st
friendly more,the most
expensive more,the most
poper er ,est