`1.` is watching

`2.` Is Molly decorating

`3.` washes

`4.` Does your sister wear

`5.` plays

`6.` is learning

`7.` are moving

`8.` cleans

`9.` is going

`10.` does the dinner party start

`2` 

`1` goes

`2` is running

`3` is crying

`4` travels

`5` aren't drinking

`6` have

`7` play

`8` circles 

`9` teach

`10` are climbing

`3` 

`1` is singing

`2`  go

`3`likes/like

`4` are staying

`@` Thì HTĐ : 
`(+):` S + V/s / Ves
`(-):` S + do / does + not + V-bare 
`(?):` Do / Does + S + V-bare`?`
        Wh- + Do / Does + (not) + S + V-bare `?`
`->` DHNB : Always, usually, often, frequently, sometimes
`@` He / She / It / danh từ số ít / danh từ không đếm được`+` is / does / doesn't
`@` I / You / We / They / danh từ đếm được số nhiều `+` are / do / don't
`@` Thì HTTD : 
`(+):` S + am / is / are + V-ing
`(-):` S + am / is / are + not + V-ing
`(?):` Am / Is / Are + S + V-ing`?`
Wh- + am/ are/ is (not) + S + V-ing`?`
`->` DHNB : now, right now, at the present, at present, Look`!`, Listen`!`

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,....

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,.....

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

Bài 15:

1. is washing 

DHNB: now (HTTD)

2. Is Molly decorating 

DHNB: right now (HTTD)

3. washes

DHNB: usually (HTD)

4. Does your young sister wear

5. plays 

DHNB: rarely (HTD)

6. is learning 

DHNB: this evening (HTTD)

7. are moving 

8. cleans 

DHNB: often (HTD)

9. is going 

DHNB: this spring (HTTD)

10. does the dinner party start  

Bài 16:

1. goes

DHNB: always (HTD)

2. is running 

DHNB: Sit down! (HTTD)

3. is crying 

DHNB: now (HTTD)

4. travels

DHNB: every Sunday (HTD)

5. aren't drinking 

DHNB: at the moment (HTTD)

6. have

DHNB: every year (HTD)

7. play 

DHNB: once a week (HTD)

8. circles 

9. teach

DHNB: always (HTD)

10. are climbing 

DHNB: Look! (HTTD)

Bài 17:

1. is singing 

DHNB: Look! (HTTD)

2. go 

DHNB: every night (HTD)

3. likes / like 

4. are staying 

DHNB: now (HTTD)

`color{orange}{~MiaMB~}`