Bài 1:

$\text{1.}$ is calling

$\text{→}$ Look! chia HTTD

$\text{2.}$ am listening

$\text{→}$ Keep silent! chia HTTD

$\text{3.}$ reads - listens - watches

$\text{→}$ usually chia HTD

$\text{4.}$ is studying - is listening

$\text{→}$ now chia HTTD

$\text{5.}$ is reading

$\text{→}$ at the moment chia HTTD

$\text{6.}$ has

$\text{→}$ On Friday chia HTD

$\text{7.}$ is - doing - is writing

$\text{→}$ now chia HTTD

$\text{8.}$ does - like - likes - doesn't like

$\text{9.}$ do - live - live

$\text{10.}$ is - doing - is watering

$\text{→}$ now chia HTTD

$\text{11.}$ is listening

$\text{12.}$ works - isn't working

$\text{→}$ every day chia HTD

$\text{→}$ at the moment chia HTTD

$\text{13.}$ is running - is trying

$\text{→}$ Look! chia HTTD

$\text{14.}$ speaks - comes

$\text{15.}$ is coming - are meeting

$\text{→}$ Shh! chia HTTD

1. is calling

2. am listening

3. read/listens/watches

4.is studying/is listening

5.is reading

6.has

7.does/do/is writing

8.does/like/like/doesn't like

9.do/live/live

10.does/doing/is watering

11.listens

12.works/doesn't work

13.is running/try

14.speak/come

15.is coming/meet

Cấu trúc:

HTĐ:

(+) S + V/ V(s/es) + Object…

(-) S do/ does + not + V +…

(?) Do/ Does + S + V?

HTTD:

(+) S + am/is/are + V-ing

(-) S + am/is/are + not + V-ing
(?) Am/Is/Are + S + V-ing?