Question

15.I will be attend an artificial intelligence course at 9 A.M tomorrow.

16. My mother said it is impolite to leave without saying goodbye.

17.She needs to improve her interview technology to get the job.

18.My parents always say I had to become a doctor.

19.She promised to hand in her assignment tomorrow.

Answer 1

Đề bài là j v bn 

Answer 2

15. attend → attending

16. is → was

17. technology → technique

18. had to → have to

19. Bỏ "to"

Answer 3

1. anttend -> anttending 

2. 

3.the -> a    ( mk chx rõ lắm)

4. had -> have ?

5.