Past habits - used to / didn't use to

Front

In the past, people ........ have smartphones.

Back

didn't use to

Front

In the past, houses ..... have electricity.

Back

didn't use to

Front

Before TV, people ... listen to the radio.

Back

used to

Front

In the past, people ...... watch Netflix.

Back

didn't use to

Front

Women didn't wear jeans in the past.

Back

didn't use to

Front

People didn't travel by plane to the USA or Europe in the past.

Back

didn't use to

Front

In the past, people traveled by horse.

Back

used to

Front

Houses didn't have natural gas heaters in the past.

Back

didn't use to

Front

Many years ago, people didn't use laptops at home.

Back

didn't use to

Front

Before the pandemic, I ..... wear a mouth cup.

Back

didn't use to