`1.` is sleeping

`2.` is running

`3.` am looking

`4.` is cooking

`5.` are having

`6.` is writing

`7.` is coming

`8.` am cooking

`9.` am doing

`10.` are-eating

`11.` is waiting

`12.` are-watching-am watching

`13.` is shining- are singing

`15.` are doing- are playing

`___________________________`

`***` HTTD:

`(+)` S  +  am/is/are  +  V_ing +  O

`(-)`  S  +  am/is/are  +  not  +  V_ing  +O

`(?)`  Am/is/are  +  S  +  V_ing  +  O?

`5.`
`→` are having
`6.`
`→` is writing
`7.`
`→` is coming
`8.`
`→` am coking
`9.`
`→` am doing
`10.`
`→` are eating
`11.`
`→` are waiting
`12.`
`→` are watching, am watching
`13.` 
`→` is shining, is singing
`15.`
`→` aren't doing, are playing 
---
$\text{*}$ Công thức:

`( + )` S  `+`  tobe  `+`  V-ing

`( - )` S   `+`  tobe  `+`  not  + V-ing

`( ? )` Tobe  `+`  S  `+`  V-ing ?

$\textit{#aKi}$