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R 七年級(jí)上冊(cè) Section B 第 5課時(shí) Unit 3 Is this your pencil? Is this your dictionary? Yes, it is. No, it isn’t. Review Are these your pens? Yes, these are. No, these aren39。t. Is this a / an …? Yes, it is. No, it isn’t. Guess Leadin Is this a / an …? Yes, it is. No, it isn’t. Guess Is this a / an …? Yes, it is. No, it isn’t. Guess :A set of keys Are these ? Call Jenny at . 3a Complete the notices with the words or phone number in the box. name yours found 2845486 lost call :My notebook My is David. Please me at 6798871. Lost name call yours 2845486 Found Language points a set of一套 。 一副 。 一組 【 語(yǔ)境領(lǐng)悟 】 *A set of keys are on the bag. 一串鑰匙在包上。 *Look! A