Past Simple
They (upgrade) their smartphones to the latest model with advanced features.
upgraded
As I (drive) home, I noticed a beautiful rainbow in the sky.
was driving
By the time Mark finished his work, his colleagues (already go) home for the day.
had already gone
While I (cook) dinner, the phone (ring).
was cooking, rang
He (cook) a mouthwatering lasagna for the dinner party.
cooked
While I (study), my roommate was playing the guitar.
was studying
By the time John arrived at the party, the cake ( already cut) and most of the guests (left)
had already been cut, had left
They (already finish) their homework before they (go) out to play.
had already finished, went
We (visit) the Eiffel Tower when we were in Paris.
visited
We (enjoy) a picnic in the park when it started to rain.
were enjoying
Sarah realized she (left) her keys at home when she reached the office, so she couldn't enter the building.
had left
Sarah (watch) TV when her friend (call) her.
was watching, called
He (win) the championship in his first tennis tournament.
won
While the storm (rage) outside, the detectives (examine) the crime scene for any clues.
was raging, were examining
The movie ( already start) when we got to the theater, so we missed the beginning.
had already started
By the time we (arrived) at the beach, the sun (already set)
arrived, had already set
By the time they (arrive), the movie had already started.
arrived
As the chefs (prepare) the gourmet dish, the restaurant manager (watch) the clock, hoping the food would be ready for the guests.
were preparing, was watching
Having studied diligently for months, Maria (finally pass) her driving test.
had finally passed
While I (study) for my exam yesterday, I (realize) that I (complete) the assignment that was due today, so I felt relieved and decided to take a break.
was studying, realized, had already completed