Yesterday at 9 o'clock the lifeguard ..................... (observe) everyone on the beach.
was observing
My father .................. (listen) to the radio in the kitchen when I woke up this morning.
was listening
The boy ....................... (not swim) in the sea yesterday at 3 o'clock.
wasn't swimming
My friends ................ (relax) on the beach yesterday.
were relaxing
The birds .......(sing) beautifully.
were singing
Last Friday Marcela ............... (study) for an exam.
was studying
They.......... (play) volleyball when the sun went down.
were playing
My sister and I ................. (fly) a kite in the park when we met our cousins.
were flying
Last Sunday we .................. (cook) lunch when you texted us.
were cooking
My brother ............... (do) his homework, but he didn't finish it.
was doing
He ..................... (prepare) dinner when he cut his finger.
was preparing
Matt ................ (use) the computer when the modem stopped.
was using
The children ................ (write) all over the walls! It was a total chaos!
were writing
The girls ............................ (surf) yesterday .
were surfing
It .......................... (rain) when we arrived at the beach.
was raining
What were you doing last night at 9 o'clock? I ................. (watch) TV.
was watching
Susan ................. (travel) to Minas Gerais when I saw her at the bus station.
was travelling