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(以上兩個句型常互換使用) Practise: Complete conversation. Millie: Hello, Sandy. This is Millie. What are you doing now? Sandy: I’m watching an interesting TV programme. It ______ (start) at 7 . and ___________ (be) on for half an hour. What are you doing? Millie: Well, I’m reading Kitty’s letter from Hong Kong. Sandy: Kitty has written a letter! When _____ you _______ (receive) her letter? Millie: I ____________ (have) her letter for five days. I ____________(receive) it last Sunday. Now I’m reading it again. Sandy: She must be very happy now. Millie: Yes, I think so. Sandy, do you want to go to the shopping mall with me tomorrow? I _____________ (stay) at home for a week! started has been did receive have had received have stayedSandy: That sounds great. I’m going to buy a gift for my parents. This Sunday is an important day for them. They ________________ (be married) for fifteen years. Millie: Do you mean they will celebrate their fifteen years of marriage this Sunday? Sandy: Yes. Millie: My parents ____________ (get married) fifteen years ago too. Sandy: Really? Maybe you should buy your parents a gift too. Let’s meet at the shopping mall at ten tomorrow morning. See you then. Millie: Ok. Bye. Practise: Complete conversation. have been married got married ( 1) I bought this dress two years ago. I______this dress ( 2) She borrowed a book from the library yesterday. She___a book from the l