1. has

2. will study

3.are looling

4. goes

5. are doing

6. is reading 

7. do you do, stay, watch

8. has never studied

9. sings, is singing

10. eat

11. buys

12. is sleeping

13. do

14. is running, is wanting

15. is

16. will travel 

17. am needing

18. likes

19. loves

20. is cooking, cooks

21. leave

22. are watching

23. doesn't play 

24. rises, sets

25. have studied

26. am hearing

27. am doing, think, know

28. Does your mother usually visit, will go

29. goes

30. is Mai doing, is sleeping

Giải thích : 

1. every day → HTĐ

3. now → HTTD

4. every day → HTĐ

5. at the moment → HTTD

6. now → HTTD

7. often → HTĐ

8. never → HTHT

9. generally → HTĐ

    today → HTTD

10. seldom → HTĐ

11. sometimes → HTĐ

12.Be quiet! → HTTD

13. always → HTĐ

14.Look → HTTD

15. now → HTTD

16. tomorrow → TLĐ

18. Hành động diễn ra thường xuyên → HTĐ

19. Hành động diễn ra thường xuyên → HTĐ

20. at present → HTTD

      always → HTĐ

21.often → HTĐ

22. now → HTTD

23. always → HTĐ

24. Sự việc hiển nhiên → HTĐ

25.for + khoảng thời gian → HTHT

26. Listen → HTTD

27. at the moment → HTTD

28.next Sunday → TLĐ

29.Sự việc hiển nhiên → HTĐ

30.at present → HTTD

Cấu trúc :

he / she / it / 1 người trở lên + s / es 

he / she / it / 1 người trở lên + does not ( doesn ' t )  + V 

Is he / she / it 1 người trở lên + V 

Yes , he / she / it    is 

No , he / she / it    isn ' t 

Does he / she / it 1 người trở lên + V 

Yes , he / she / it    do

No , he / she / it    doesn ' t 

I / you / we / they / 2 người trở lên + V 

I / you / we / they / 2 người trở lên + do not ( don ' t )  +  V

Am I + V 

Yes , I am 

No , I am not 

Are you / we / they / 2 người trở lên + V 

Yes , you / we / they       are 

No , you / we / they       aren ' t 

am / is / are + V ing 

S + will V + O

S + will be + ing + O 

S + will have + V3 + O

1has(simple present,dấu hiệu every day và cách chia động từ Vs/es)

2studies(simple present,,dấu hiệu this summer)

3are looking(simple continuous,,dấu hiệu now và cách chia động từ am/is/are+ving)

4goes(simple present,dau hieu every day)

5are doing(simple continuous dau hieu at the moment)

6is reading(simple continuous,dau hieu now)

7do-stay-watch(simple present,dau hieu at weekend,often)

8study(simple present.dau hieu never)

9sing=is singing(simple present va simple continuous,dau hieu cua present generally va dau hieu cua continuous la today)

10eat(simple present,dau hieu seldom)

11buy(simple present,dau hieu sometimes)

12is sleeping((simple continuous, dau hieu be quiet)

13do(simple present,dau hieu always)

14is running-wants((simple continuous va simple present)

15is(simple continuous)

16will travel(simple future,dau hieu tomorrow)

17need(simple present)

18likes(simple present)

19loves(simple present)

20is cooking-cooks(simple continuous va simple present)

21leave(simple present,dau hieu at weekend)

22are watching(simple continuous dau hieu now)

23does not pay(simple present,dau hieu always)

24rises-sets(simple present)

25studies(simple present)

26am hearing(simple continuous)

27am doing-am thinking-know

28visits-will go

29goes(simple present)

30is doing- is sleeping(simple continuous)