Задание:Find the odd words. 1 What did were you doing at seven oclock yesterday evening? 2 Who was playing the guitar when you came? 3 Were you were watching TV when she phoned? 4 They were reading a book when Mum did came?
2. или- the, или тут всё правильно.
4.did, и знак вопроса не надо, потому что если это вопрос,то будет:
Were they reading a book when mum came?