4 Match the sentences. 0 Last summer was the hottest one ever. 1 You forgot Helen's birthday yesterday. 2 I didn't get any sleep last night. 3 So you're working late tonight? 4 Sandra broke her leg two days ago. 5 Tom got into trouble at school. 6 I just don't have any money. GO a That explains why you're in such a bad mood today. b Yes. It was because of his bad behaviour. C That explains why she hasn't been at school. d So that's why you don't want to come shopping with me. e Yes, and that's why I can't join you for dinner. f So that's the reason why she isn't talking to me. g It's definitely because of global warming.​