Answer the questions using when and the verb of the subordinate

Answer the questions using when and the verb of the subordinate clause in the past continuous tense. Model:When did she meet Helen? (walk along the street) She met Helen when she was walking along the street. When did you catch that cold? (skate on a frosty day) ____________ When did he write those nice poems? (have a holiday) ___________ When did she learn the language? (live in England) _____________ When did she hear that song? (listen to a concert on the radio) _____ When did you buy that book? (read up for my exams) ____________ When did the boy hurt himself? (ride the bicycle) _______________ When did Philip lose his camera? (walk about the city) ___________ When did he ring you up? (have supper) ______________________