used to/ didn't use to

The Smiths don't have a car. They sold it five months ago.

• The Smiths didn't use to have a car.

• The Smiths used to have a car.

• The Smiths used to sold a car.

Mike didn't go on holiday, and now he travels every year.

• Mike didn't used to travel a lot.

• Mike used to travel a lot.

• Mike didn't use to travel.

Nikki wore long dark hair, and now she's got a nice haircut.

• Nikki used to wear long dark hair.

• Nikki didn't use to wear long dark hair.

• Nikki used to have a nice haircut.

Peter spent all evenings at home, and now he goes out every evening.

• Peter used to go out every evening.

• Peter didn't use to spend all evenings at home.

• Peter used to spend all evenings at home.

Last week my elder brother learned to drive a car.

• My elder brother didn't use to learn.

• My elder brother used to drive a car.

• My elder brother didn't use to drive a car.

I didn't like fish when I was a child. And now it's my favourite food.

• I didn't use to eat fish.

• I used to eat fish.

• I used to like fish when I was a child.

Betty was very sensitive and cried a lot when she was a child.

• Betty didn't use to be very sensitive.

• Betty used to cry a lot.

• Betty used to be reserved.

Steve didn't watch horror films because they are scary.

• Steve used to watch horror films.

• Steve didn't used to watch horror films.

• Steve didn't use to watch horror films.

Jason was very kind-hearted and reliable boy, but now he is very naughty and impatient.

• Jason used to be kind-hearted and reliable boy.

• Jason used to be naughty and impatient.

• Jason didn't use to be reliable and kind.

I worked as fitness trainer, but now I'm slightly fatter for that job.

• I used to be slightly fatter for a fitness trainer.

• I used to be fit to work as a fitness trainer.

• I didn't use to work as a fitness trainer.