Past simple, past continuous and used to

We _________ an experiment at school when a fire ___________.

• were doing / started

• were starting / did

They _________ lunch when they ________ the phone call.

• received / were having

• were having / received

The electricity ________ off at home while I __________my homework.

• was doing / went

• went / was doing

I __________ information while I __________ the net.

• was surfing / found

• found / was surfing

• finding / surfed

We ___________ face to face classes when the pandemic _________.

• were having / began

• began / were having

• begining / having

I _________ a bike when I was a child.

• use to ride

• used to ride

• used to rode

She __________ facebook when she was 6 years old.

• doesn't used to have

• wasn't use to have

• didn't use to have

We ____________ face to face classes before the COVID.

• used to have

• use to having

• uses to had

We ___________ a mask in 2019.

• didn't to use

• didn't using to wear

• didn't use to wear

We _________ to more parties with our family and friends before the pandemic.

• using to go

• used to go

• to go used