Giúp em với ạ help help help

15 is

- often -> HTĐ : am/is/are

16 am doing - think - know

- at this moment : lúc này -> HTTD : S + am/is/are + V-ing

- Động từ chỉ sự hiểu biết, quan điểm không chia thì tiếp diễn

17 buys

- sometimes -> HTĐ : S + V(s)

18 is

- Thì HTTD tobe giống với công thức thì HTĐ

19 rains - is raining

- in summer -> HTĐ

- now -> HTTD

20 is cooking - cooks

- at present : hiện tại -> HTTD

- always : luôn luôn -> HTĐ

21 do you read

- often -> HTĐ : Do/Does + S + V-inf?

22 rises - is rising

- always -> HTĐ

- Look! -> HTTD

23 am hearing - know - are saying

- Hành động đang diễn ra tại thời điểm nói -> HTTD

24 has

- every morning -> HTĐ

25 see - are wearing

26 has - works

- often -> HTĐ

27 have you studied

- how long : bao lâu -> HTHT : Have/Has + S + Vpp?

28 have been waiting - has not come

- for + khoảng time -> HTHT/ HTHT tiếp diễn

29 have lived

- since 1975 -> HTHT : S + have/has + Vpp