1 While Pops was writing in his diary, he heard the front door open.
2 Pops went downstairs when Eva shouted: 'Hello, Grandad! It's us!'
3 Mac and Eva were standing in the kitchen when Pops came in.
4 While Mac was making some sandwiches, Eva fed the dog.
5 Mac and Eva were having their tea when their mum came home from work.
6 While mum was talking to Pops, Eva was giving her a sandwich and a cup of tea.