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____________ . Mine is in my pencil box. Lucy: 2. ____________________ ? 答案 : 1. No, it isn’t 2. Whose is it Bob: It could be Jack’s. Lucy: 3. ____________________ . He doesn’t like red. Bob: Look! Cindy’s name is on the pen. I think it must be Cindy’s. Lucy: 4. ____________________ . . . . Bob: Hi, Cindy. 5. ____________________ ? 答案 : 3. It can’t be his 4. You’re right/I agree with you 5. Is this your pen Cindy: Yes, it is. Where did you find it? Bob: Under my desk. Here you are. Cindy: Thank you. Bob: You’re wele. 。 catch。例如 : You must be dreaming. 你一定是在做夢(mèng) 。