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

`1` Where is Linh reading books `?`

`2` What are the boys doing in the garden `?`

`3` What musn't we do in the classroom `?`

`-` Mustn't : Không được phép .

`4` How often do you stay up late on Saturday night `?`

`5` When do many girls do aerobics `?`

`6` How much time a day does your brother watch TV `?`

`7` How much money is the new TV `?`

`-` Hỏi giá tiền .

`->` How much money is + N `?`

`8` How often do they go to English club `?`

`9` How does the newsreader usually go to work `?`

`10` Why does she miss a week's lesson `?`

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

`@` HTD :

`(+)` S + am/is/are + ... `/` S + V(s,es) + O .

`(-)` S + am/is/are + not + ... `/` S + don't/doesn't + V + O .

`(?)` `(`Wh-question`)` Am/Is/Are + S + ... `?` `/` `(`Wh-question`)` Do/Does + S + V + O `?`

`@` 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 `?`

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

`1`. Where is Linh reading books?

`-` HTTD `(?)` (Wh_q) + tobe + S + V-ing + O?

`-` Where : ở đâu `->` hỏi địa điểm

`2`. What are the boys doing in the garden?

`-` What : cái gì

`3`. What mustn't do in the classroom?

`-` (Wh_q) + must/mustn't + S + V(bare) + O? 

`4`. How often do you stay up last on Saturday night?

`-` HTĐ `(?)` (Wh_q) + do/does + S + V(bare) + O?

`-` How often `->` hỏi tần suất

`5`. When do many girls go aerobics?

`-` When : khi nào `->` Hỏi thời gian

`6`. How many hours does your brother watch TV a day?

`-` How many + N(số nhiều) : bao nhiêu

`7`. How much is the new TV?

`-` How much + tobe + N? : hỏi giá

`8`. How often do they go to English club?

`9`. How does the newsreader usually get to work?

`-` How : bằng cách nào, như thế nào

`10`. Why does she miss a week's lesso?

`-` Why : tại sao `->` hỏi lý do