`1`  Is his house on the side of a hill?

`2`  Does the dog jump at the kitchen?

`3`  Is it a good place?

`4`  Do they live in Thai Nguyen city?

`5`  Are you happy about the news?

`6`  Are you so happy about the result?

`7`  Does their flat have a balcony?

`8`  Are the houses beautiful but old?

`9`  Is your father on a business trip?

`10`  Does she go home in the dark?

`@`HTĐ

`-` tobe

`+)`S + am/is/are + O

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

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

`->`I `+` am

`->`He, She, It, chủ từ số ít `+` is

`->`We, They,You, chủ từ số nhiều `+` are

`-` với V thường

`+)`S + V(s/es) + O

`-)`S + do/does not + V +O

`?)` Do/Does + S + V-inf + O?

`->`He, She, It, chủ từ số ít `+` Vs/es, does

`->`I,We, They,You, chủ từ số nhiều `+` V, do

`=>`often, usually, sometimes, every day/ week, month, ….