Acorrect the mistake in each sentence. example: my father working in a supermarket when he met my mother for the first time. my father was working in a supermarket when he met my mother for the first time. 1 learned you english when you were at school? did you learn english when you were at school? 2 i was buying a new english dictionary last saturday. i bought a new english dictionary last saturday. 3 this time last year i travelled around south america. 4 i was cooking dinner last night when suddenly my mobile phone was ringing. 5 the train already left the station when i arrived, so i had to wait for the next one.