I ________ (see) a friend while I _______ (shop).
saw, was shopping
What _________ (he/do) when you ________ (see) him?
was he doing, saw
I ___________ (not do) my homework when my mom ___________ (come) home.
wasn't doing, came
The kids ______________ (play) outside while I ______________ (cook).
played, was cooking
While we ______ (watch) TV, dad _______ (fall) asleep.
were watching, fell
Who _________ (she/meet) while she ________ (travel) around Europe?
did she meet, was traveling
She ______________ (sleep) when he ____________ (knock) on her door.
was sleeping, knocked
While I _______ (wait) for the bus, it __________ (start) to rain
was waiting, started
When the teacher _________ (ask) the question, he __________ (not listen).
asked, wasn't listening
I ________ (study) when my computer________ (crash)
was studying, crashed
While I ________ (do) my homework, my friend _________ (send) me a message.
was doing, sent
I _________ (walk) to school when I ________ (see) a cat on the tree.
was walking, saw
When my parents ________ (meet), they _________ (study) to become doctors.
met, were studying
What book __________ (you/read) when I _________ (arrive)?
were you reading, arrived
What ______________ you ______________ (do) when the phone ______________ (ring)?
were you doing, rang
She _______ (play) the piano when I ______ (leave).
was playing, left
_____________ (you/buy) milk while you ____________ (get) groceries?
Did you buy, were getting
The students ________ (not listen) while the teacher ________ (explain) the task.
didn't listen, was explaining
It ________ (not rain) when I ________ (leave)
wasn't raining, left
I __________ (write) a message when my phone ______ (die)
was writing, died
What _________ (you/buy) while you __________ (shop)?
did you buy, were shopping