对话填空。请认真阅读下面对话，并根据各题所给首字母的提示，写出一个英语单词的完整、正确 形式、使对话通顺。 M＝Mum S＝Sara P＝Peter (When Sara came home from work, she found her mother in an anxious state) S: What's wrong, Mum? You seem upset. M: It's your (1)y______ sister Jill. She should have been here an hour ago. S: Don't (2)w______, Mum! It's not all that late and she has probably not (3)r______ how late it is. I think she'll be here soon. (Just then Sara's brother Peter came into the kitchen.) P: What's up? Mum's on the phone and she seems as though she's going to cry. S: It's Jill. She should have (4)r______ home by now and Mum's getting anxious. P: You needn't feel so anxious Mum! You know what teenage girls are like. I'm (5)s______ she's all right. M: I can't help but he concerned. I've just rung Lucy and she said Jill left her outside the cinema ages ago to get the bus home. P: Well, the bus service isn't very frequent in the evenings. Perhaps she (6)m______ one and is waiting for another. Have you tried (7)p______ her on her mobile? M: Yes, but there's no reply. That made me even more worried. I think (8)s______ must have happened to Jill. Do you think we should call the (9)P______? S: Calm down, Mum! You'll make yourself ill. Perhaps she switched her mobile (10)o______ in the cinema and forgot to switch it back on again. Or it may need to be charged.