Răspuns:
1) He didn't paid his bill at the restaurant
2) The bell rang and Mary didn't opend the door
3) We didn't had dinner
4) He didn't send a letter to his friend
5) They didn't paid a lot of money for the car
6) The doctors didn't let him go
7) I didn't knew him well
8) I didn't hear some noise
9) He didn't broke his leg
10) They didn't arrive yesterday
11) He didn't told me about the accident
12) He didn't drove carefully
13) I didn't saw them yesterday
14) He didn't went to meet her
15) He didn't paid the tickets in advance
Explicație:
SUBJECT + DID + NOT + BASE FORM OF THE VERB
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