I.
1. is watching
2. are sitting
3. are learning
4. is playing
5. is sleeping
6. is smoking
7. is working
8. Is John listening
``
Hiện tại tiếp diễn:
- DHNB: now, at the moment, Look!, Listen!, right now,. . .
- (+) S + is/am/are + V-ing
- (-) S + is/am/are + not + V-ing
- (?) Is/Am/Are + S + V-ing
---
II.
1. goes
2. comes
3. go
4. watch
5. walks
6. is
7. are
8. washes
9. studies
10. wants
``
Hiện tại đơn:
- DHNB: every day/night/Monday/. . . , always, usually,. . .
- (+) S + V/Vs/es
- (-) S + don't/doesn't + V
- (?) Do/Does + S + V
• tobe:
- (+) S + is/am/are
- (-) S + isn't/am not/aren't
- (?) Is/Am/Are + S
---
III.
1. has seen
2. have already finished
3. have they lived - have lived
4. has just washed
5. has never been
6. have known
7. have learnt
8. have been
9. haven't stayed
``
Hiện tại hoàn thành:
- DHNB: just, before, since, for, twice/three/several times, up to now, ever, How long
- (+) S + has/have + V3/ed
- (-) S + hasn't/haven't + V3/ed
- (?) Have/Has + S + V3/ed
---
1. have just taken
2. have ever visited
3. have walked 
4. have seen
5. have given
6. am working

Công thức thì HTTD 

(+) S + am/is/are + Ving 

(-) S + am/is/are + not + Ving 

(?) Am/Is/Are +S +Ving? 

DHNB: now, right now, (!), at present, at the moment,.....

Công thức thì HTHT

(+) S + has/have + V3/ed 

(-) S + has/have + not + V3/ed 

(?) Has/Have + S+ V3/ed?

DHNB: before, since + mốc thời gian, for + khoảng thời gian, yet, already, just,....

Công thức thì HTĐ (V: tobe)

(+) S + am/is/are ..

(-) S + am/is/are + not .. 

(?) Am/Is/Are + S + ... ? 

I + am

S số ít, he, she, it + is

S số nhiều, you ,we, they + are

Công thức thì HTĐ (V: thường)

S số ít, he, she, it 

(+) S + Vs/es

(-) S+ doesn't + V1 

(?) Does +S +V1?

S số nhiều, I, you, we, they

(+) S + V1 

(-) S+ don't + V1 

(?) Do + S+ V1? 

DHNB: always, usually, sometimes, often, never, seldom,....

-------------------------------------------------

Bài 9 câu:

1. is watching 

DHNB: right now (HTTD)

2. are sitting

DHNB: at present (HTTD)

3. are learning

DHNB: this year (HTTD)

4. is playing

DHNB: Look! (HTTD)

5. is sleeping

DHNB: Be quiet! (HTTD)

6. is smoking

DHNB: Look! (HTTD)

7. is writing 

DHNB: now (HTTD)

8. is working

DHNB: at the moment (HTTD)

9. Is John listening

DHNB: now (HTTD)

Bài dấu chấm:

1. goes

DHNB: every day (HTD)

2. comes

3. go

DHNB: usually (HTD)

4. watch

DHNB: every night (HTD)

5. walks 

DHNB: every day (HTD)

6. is 

7. are

8. washes

DHNB: every Sunday (HTD)

9. studies

DHNB: every day (HTD)

10. wants

11. has seen

DHNB: before (HTHT)

12. have already finished

DHNB: already (HTHT)

13. have they lived / have lived 

DHNB: since 1990 (HTHT)

14. has just washed

DHNB: just (HTHT)

15. have discussed 

DHNB: rewcently (HTHT)

16. has never been 

DHNB: never (HTHT)

17. have known 

DHNB: for 5 years (HTHT)

18. have learnt

DHNB: for a long time (HTHT)

19. haven't stayed

DHNB: since last week (HTHT)

EX1:

1. have just taken

DHNB: just (HTHT)

2. have ever visited

DHNB: ever (HTHT)

3. have walked

DHNB: for three hours (HTHT)

4. have seen 

5. has given
DHNB: Up to now (HTHT)

6. am working

`color{orange}{~LeAiFuRuiHuiBao~}`