补全对话。 Alice's mother is ill. She wants to take a few days off. She goes to her teacher. A: Excuse me, Mr Green, I'd like to take a few days off. G: __ 1 __ A: My mother is ill.I have to look after her. G: __ 2 __ Is there anything I can help? A: No, thank you. My mother has a bad cold and high fever. The doctor says she has to be in hospital for a few days. I  have to be with her. G: I know. __ 3 __. A: Next Wednesday. G: OK.I hope your mother will feel better soon. A: __ 4 __, Mr Green.  It's very kind of you. G: __ 5 __ I'll certainly help you with your lessons when you get back.