PAST PROGRESSIVE VS SIMPLE PAST

I ___ on the bus stop when I saw a car accident.

• was waiting

• waited

• wait

Someone ___ the door while Sheila was watching TV.

• was knocking

• knocked

• knock

While we ___ California, we took a walk through the park.

• were visiting

• visited

• visit

I ___ a teacher 5 years ago.

• became

• become

• was becoming

Julia ___ the campaign before the conference.

• start

• started

• was starting

Charlie ___ to Africa last summer.

• travel

• traveled

• was traveling

The students ___ a lot of activities when they were in class.

• were making

• was making

• make

The congress man ___ American.

• was

• were

• weren't

Alina ___ the movie with us.

• wasn't see

• didn't see

• didn't saw

___ you understand the lesson?

• Was

• Were

• Did