14. didn't pass - didn't study

15. didn't hear

16. didn't arrived

17. didn't hand in 

18. learnt

19. didn't come

20. didn't take

21. didn't come

22. did he come

23. did - take

24. did - come

14. She (not/pass) didn't pass the last exam because she (not/study) didn't study hard.

15. I (not/hear) didn't hear anything about her.

16. They (not/arrive) didn't arrive at the airport on time because of bad weather.

17. Susan (not/hand in) didn't hand in the reports last week

18. One night we even (learn) learned/ learnt some Irish dances.

19. 5. Peter (not/come) didn't come to class last Friday.

20. David (not/take) didn't take His mother’s advice.

21. Last month, Sue (not/come) didn't come here. of Irish food.

22. Why did he (come) come to New York last year?

23. How long did it (take) take you to come here this morning?

24. Last night, did he (come) come back home late?