Réponse:

how often does Anne watch tv?

how often do you write to your parents?

what time do you usually have dinner?

where does Tom work?

how often do you go to the cinema?

why do people do stupid things?

how often does the car break down!?

Explications:

pronom interrogatif+ do/does+ sujet + verbe

si il h a un adverbe (usually), il se place toujours avant le verbe