Underline the correct form of the verb: a: what were you doing/did you do at the weekend? b: well, we painted/were painting the sitting-room when the lights were going/went off! a: what was happening/happened? b: jenny was slipping/slipped off the ladder and was breaking/broke her leg! a: whatdid the children do/were the children doingatthetime? b: jules was playing/played with the dog and claire was talking/talked on the phone.