2) Complete the sentences with all, that or what. 1 I’m concerned _______ she didn’t come to me with her problems. 2 The worrying thing is _______ climate change is happening so fast. 3 _______ she said made me realise how unhappy she is. 4 I know _______ my dad thinks about my behaviour is important. 5 I’m sorry, I’ve eaten _______ I can! 6 _______ is difficult is answering the questions in such a short time. 7 _______ I know about the row is that they aren’t speaking to each other now.