Are you after the 18 words?

1. A,an,act,after,add,afternoon,
2. Again,across,all,also,agree,always
3. Alone,am,animal,ant,any,and.
4. A is the first letter of the alphabet.
5. He is a boy and she is a girl. A= Indefinite article 
6. Which boy or girl,not specified.
7. I saw an elephant carrying an egg in his trunk.
8. It was carrying an umbrella yesterday.
9. An ant was also riding the elephant.
10. The ant was eating an ice-cream.
11. An eagle saw this and snatched that from the ant.
12. An owl  also saw this incident.
13. An ant, an eagle,an egg, an ice-cream,an owl, an umbrella,
14. All these words start with a,e,i,o,u 
15. So we add the indefinite article An.
16. You can also act in the movie.
17. Eight comes after seven.
18. He always go after the praise and the prize.
19. Add one more lesson in your learning daily.
20. Take tea and biscuits in the afternoon.
21. Try,try,try ,again,again and again until you gain.
22. Don't walk across the road carelessly.
23. All are good people in this world.
24. You can also read,write and speak English easily.
25. Do you agree?
26. Rise up early and read at least one  lesson everyday.
27. You are not alone in  this world.
28. I am with you in your every step,your well-wisher.
29. Man is a social animal. 
30. Some animals like dog are more faithful and trustworthy.
31. We have to learn how to work  hard from the ant and the bee.
32. Pick up any word and learn the spelling,meaning and the usage.It is easy.
33. You and I can very well do this.
34. Wish you good luck.
35. Please contact raoguides@gmail.com     if in doubt.