Question

2) changes this sentences to the other form absents

(+) He takes the bus to school .
(+)
(-)

(+)
(-)They don't live in a big city. (?)
(?)​

Answer 1

(+) he takes the bus to school

(-) he doesn't take the bus to school

(?) Does he take the bus to school?

(+) they live in a big city

(-) they don't live in a big city

(?) Do they live in a big city?

espero que te hayas referido a eso :)