A .
`1` play - played
`2` walk - walked
`3` watch - watched
`4` listen - listened
`5` wait - waited
`6` check - checked
`7` ask - asked
`8` want - wanted
`9` call - called
`10` deliver - delivered
`11` decide - decided
`12` work - worked
`13` warn - warned
`14` wash - washed
`15` try - tried
`16` turn - turned
`17` question - questioned
`18` observe - observed
`19` need - needed
`20` live - lived
`21` laugh - laughed
`22` kill - killed
`23` kiss - kissed
`24` invite - invited
-> Tất cả đều là động từ theo quy tắc -> thêm ed
B.
`1` (+) Yes , I did
(-) No, I didn't
`2` (+) Yes , he did
(-) No, he didn't
`3` (+)Yes, she did
(-) No ,she didn't
`4` (+) Yes , she did
(-) No , she didn't
`5` (+) Yes , he / she did
(-) No , he / she didn't
-> Did + S + V + O
-> Yes , S + did
-> No, S + didn't
@ Dorris
