1. (+) they study in a group every Thursday afternoon (-)... (?)... 2. (+) my teacher gives me new lesson every week (-)... (?)...

(-) they don't study in a group every thursday afternoon
(?) do they study in a group every thursday afternoon?

(-) my teacher doesn't give me new lesson every week
(?) does my teacher give me new lesson every day?
Or
(?) does your teacher give you new lesson every day?