-
最佳答案:uy bought boughtdo did donehave had hadsee saw seenopen opened opened
-
最佳答案:过去式用在过去时。 过去分词用在完成时。
-
最佳答案:过去式依次是:came lent wrote paid saw left flew spent过去分词依次是:come lent written paid se
-
最佳答案:saw表示过去的动作 seen表示被动 望采纳
-
最佳答案:seesseeingsawseen很高兴为你解答,如果还有其他的问题请追问我.171819sss随时为你解答.如果你感觉我的回答很好,请轻轻的点击右下角的【采纳
-
最佳答案:show shownprefered preferedcost costwrote writenwent gonetook takenflew flownsaw
-
最佳答案:ings bringingsees seeingthrows threw thrownplayedstudied studied studying
-
最佳答案:原形,过去式,过去分词be、was / were ,beensee、saw ,seenair、aired ,airedclean、cleaned ,cleane