Fill in the gaps with can, can't or could. Then, say what they express In each sentence. 1 A: Mum, ...can... I go on holiday with my friends this year? (asking for permission) B: I'm afraid you You're too young. 2 A: Sir, I need to leave work early tonight, if that's possible B: You leave early if you finish all your work first. 3 A: My mum always said that I was a clever child B: What do you mean? A: Well, I read and write when I was four years old. 4 A: It's raining. so we go out tonight B: Well, we'll stay in then. A: But, I want to do something nice. I'm bored. B: We play chess. 5 A: Excuse me? B: Yes Α. you tell me the time, please? B: Yes, it's almost two o'clock,