$\begin{array}{c} \color{#db1616}{\texttt{#NUyen}} \end{array}$

`1`. Where is she going?

`2`. Is he eating fish?

`3`. Why are you buying a new jacket?

`4`. How is Anna doing?

`5`. Are you using your phone?

`6`. What is he wearing?

`7`. Where are you doing now?

`-----`

`@` HTTD `(?)` (Wh_q) + am/is/are + S + V-ing + O?

`@` DHNB : at the present, now, right now, at the moment,...

`1` Where is she going `?`

`2` Is he eating fish `?`

`3` Why are you buying a new jacket `?`

`4` How is Anna doing `?`

`5` Are you using your phone `?`

`6` What is he wearing `?`

`7` Where are you going now `?`

`- - - - - - - - - - - -`

`@` HTTD :

`(+)` S + am/is/are + V-ing + O .

`(-)` S + am/is/are + not + V-ing + O .

`(?)` `(`Wh-question) Am/Is/Are + S + V-ing + O `?`