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I ______ (walk) home when I ______ (see) an old friend.
👉 was walking / saw
I ______ (never / try) sushi before I ______ (go) to Japan.
👉 had never tried / went
He ______ (drive) when he ______ (receive) the call.
👉 was driving / received
We ______ (wait) for the bus when it suddenly ______ (break) down.
👉 were waiting / broke
She ______ (already / leave) when we ______ (arrive).
👉 had already left / arrived
When I ______ (wake up), it ______ (snow).
👉 woke up / was snowing
I ______ (study) when my friend ______ (send) me a message.
👉 was studying / sent
He ______ (feel) nervous because he ______ (never / speak) in public before.
👉 felt / had never spoken
While they ______ (watch) a movie, the lights ______ (go) out.
👉 were watching / went
They ______ (play) football when it suddenly ______ (start) to rain.
👉 were playing / started
After they ______ (finish) the test, they ______ (leave) the classroom.
👉 had finished / left
When they ______ (arrive), we ______ (already / start) eating.
👉 arrived / had already started
He ______ (not / finish) his homework when the teacher ______ (collect) it.
👉 hadn’t finished / collected
She ______ (be) very tired because she ______ (not / sleep) well.
👉 was / hadn’t slept
She ______ (not / understand) the movie because she ______ (not / read) the book.
👉 didn’t understand / hadn’t read
I ______ (drop) my phone while I ______ (walk) down the street.
👉 dropped / was walking
We ______ (have) dinner when someone ______ (knock) on the door.
👉 were having / knocked
By the time we ______ (get) to the station, the train ______ (already / leave).
👉 got / had already left
While I ______ (run) in the park, I ______ (see) something strange.
👉 was running / saw
She ______ (cook) when the guests ______ (arrive).
👉 was cooking / arrived