`1,` They speak three languages fluently

`2,` She does not work on Saturdays

`3,` It does not rain in the desert

`4,` Wherre does your sister work ?

`5,` We often walk in the park on Sundays

`6,`Do you often go to the gym for exercise ?

`7,` Wherre does your sister work ?

`8,` Who speaks French fluently in your family ?

`9,` Does your friend enjoy cooking ?

`10,` Is it your pet ?

`->` HTĐ - NV : Am/is/are + S + O ... ?

______________________________

`@` HTĐ

`**` ĐT thường

`(+)` S + V-s/es/inf ...

`(-)` S + don't/doesn't + Vbare-inf ...

`(?)` (Wh-questions) + do/does + S + Vbare-inf ... ?