-
最佳答案:cleaned
-
最佳答案:lose- lost- lostcook- cooked- cookedclean- cleaned- cleanedpass- passed- passeds
-
最佳答案:cleanedreadwaitedshoppedrainedsnowedcookedstudiedlaindescribed
-
最佳答案:双写的前提是,单词的结尾以"一个"元音字母后跟"一个"辅音字母,而且是重音在这个音节上.由于CLEAN这个单词,虽然符合音节和一个辅音字母结尾的条件,但是在结尾
-
最佳答案:play played playedclean cleaned cleanedstop stoped stopedtry tried tried
-
最佳答案:原形,过去式,过去分词be、was / were ,beensee、saw ,seenair、aired ,airedclean、cleaned ,cleane