`Answer:`

`1.` `(-)` The girl doesn't often listen to pop music.

      `(?)` Does the girl often listen to pop music?

`2.` `(-)` I am not from the capital of Vietnam, Ha noi.

      `(?)` Are you from the capital of Vietnam, Hanoi?

`3.` `(+)` My father keeps the greenhouse warm at night.

      `(?)` Does my father keep the greenhouse warm at night?

`4.` `(+)` Danny remembers to phone his father on Sunday.

      `(-)` Danny doesn't remember to phone his father on Sunday.

`5.` `(+)` They do their homework after school.

      `(?)` Do they do their homework after school?

`==========`

`+` Cấu trúc thi Hiện tại đơn:

`(+)` KĐ: S + V/ses

`(-)` PĐ: S + don't/doesn't + V(inf)

`(?)` NV: Does/Do + S + V(inf)?

`-` Thì HTĐ :

`+` KĐ : S + Vs / es

`+` PĐ : S + don't / doesn't + V

`+` NV : Do / Does + S + V ?

`=>` `DHNB` : usually , often , always , ...

`1`.

`( - )` The girl doesn't often listen to pop music

`( ? )` Does the girl often listen to pop music ?

`2`.

`( - )` I am not from the capital of Vietnam , Ha Noi

`( ? )` Are you from the capital of Vietnam , Ha Noi ?

`3`.

`( + )` My father keeps the greenhouse warm at night

`( ? )` Does your father keep the greenhouse warm at night ?

`4`.

`( + )` Danny remembers to phone his father on Sundays

`( - )` Danny doesn't remember to phone his father on Sundays

`5`.

`( + )` They do their homework after school

`( ? )` Do they do their homework after school ?

`\text{# Eternal}`