Category 1
Laura ____(teach) me how to cook a pie, but I _______ (burn) it.
Laura TAUGHT me how to cook a pie, but I BURNT it yesterday.
While Alice _______ (read), Paula and Keith ______ (watch) TV.
While Alice WAS READING, Paula and Keith WERE WATCHING TV.
When the teacher _____________ (say) ‘Stop!’, I _______________ (still / try) to finish the last question.
SAID / WAS still TRYING
When Alba and Alicia ________ (leave) their houses, they ______ (see) a unicorn.
When Alba and Alicia WERE LEAVING their houses, they SAW a unicorn.
Víctor _______ (cook) dinner yesterday at 9:30 p.m.
Víctor WAS COOKING dinner yesterday at 9:30 p.m.
Leandro ______ (feel) sad when he and his friend _______ (say) goodbye.
Leandro FELT sad when he and his friend SAID goodbye.
I don't care what you_____(do), I want to know who ______ (try) to steal my bag.
WERE DOING, WAS TRYING
Adrián _____ (lose) his wallet while he _____ (jog) in the park.
Adrián LOST his wallet while he WAS JOGGING in the park.
While Dad _________________ (print) an article, the printer _________________(run out) of paper.
WAS PRINTING / RAN OUT
I _________________ (be) in London for three years now. I love it here
Pablo and Pablo ______ (find) three cookies in the kitchen. They _____ (eat) them an hour ago.
Pablo and Pablo HAVE FOUND three cookies in the kitchen. They ATE them an hour ago.
Paula ______ (not travel) to France, but she _____ (go) to Germany last summer.
Paula HAS NOT TRAVELLED to France, but she WENT to Germany last summer.
While they ____________________ (try) to fix the computer, all the lights ___________________ (go out).
WERE TRYING / WENT OUT
While Benjamin ________ (study) for his English exam, I ______ (bring) him some snacks.
While Benjamin WAS STUDYING for his English exam, I BROUGHT him some snacks.
Last Sunday Julia and I ____________ (feel) energized, so we ________ (stand) up and _______ (go) for a run.
Julia and I were feeling energized, so we STOOD up and WENT for a run.
Mateo ________ (study) hard since April, and ______ (do) well on the English exam yesterday.
Mateo HAVE STUDIED hardsince April, and DID well on the English exam yesterday.
_____ you _____ (whistle) while Inés ______ (talk)?
WERE you WHISTLING while Ineś WAS TALKING?
Silvia _____ (listen) to her iPod, so she _____ (not hear) the fire alarm.
Silvia WAS LISTENING to HER iPod, so she DID NOT HEAR the fire alarm.
When Abel and Ira ______ (play) hide-and-seek with their friends, they _____ (lay) on the floor and _____ (hide) behind a box.
When Abel and Ira WERE PLAYING hide-and-seek with their friends, they LAID on the floor and HID behind a box.
Julie _________________ (already / arrive)! Come and say hello!
___ has already arrived
I think he ___________ (LOSE) his keys. He ________ (LOOK) for them in the car and at home, but he still (NOT FIND) them. Last time he ___________ (SEE) them ___________ (BE) yesterday.
I think he HAS LOST his keys. He HAS LOOKED for them in the car and at home, but he still HASN'T FOUND them. Last time he SAW them WAS yesterday.
____________ (he / study) on Saturday night when we ___________ (call) him?
WAS he STUDYING on Saturday night when we called him?
Last time I __________(take) a photo ______ (be) Monday morning while we _________ (play) badminton. I ____________ (not see) my camera since then.
Last time I took a photo was Monday morning while we were playing badminton. I haven't seen my camera since then.
_______ you ________ (be) to Italy? - Yes, we _________ (go) there last spring while my cousin ______ (study) Italian there.
Have you been to Italy? - Yes, we went there last spring while my cousin was studying Italian there.
I _________________ (know) about the problem for months now, but I _________________ (not / find) a solution yet.
HAVE KNOWN / HAVEN'T FOUND