Question

一些初二英语的问题，谢啦！

写出下列动词的过去式和过去分词
be、see、air、clean、open、sharpen、boil、answer、turn on、listen to、ask、type、wash、walk、dust、paint、empty
快点啦，谢谢

Answer 1

原形， 过去式， 过去分词
be、was / were , been
see、saw , seen
air、aired , aired
clean、cleaned , cleaned
open、opened, opened
sharpen、sharpened , sharpened
boil、boiled , boiled
answer、answered , answered
turn on、turned on , turned on
listen to、listened to , listened to
ask、asked, asked
type、typed , typed
wash、washed , washed
walk、walked , walked
dust、dusted , dusted
paint、painted , painted
empty, emptied , emptied

Answer 2

are were been