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) 14. Are you ____ duty? A. on B. of C. in D. at Ⅲ 、 用括號中適當?shù)脑~填空。 Ⅱ 、 單 項選擇。 Unit 4 Where’s my backpack? Section B 湖北省黃岡市蘄春縣漕河鎮(zhèn)中 柴曉鵬 Ⅰ 、 本題你將聽到四段小對話。請從下面所給的四幅圖畫中分別選出與你所聽到的對話相符的,并在相應的圓圈中標出其序號。選擇填空。 15. She ______ ( am, is , are ) a middle school student . 16. I ______ ( am ,is , are ) from Beijing . 17. Mary and Grace _______ ( am , is , are ) good friends . 18. There _______ ( am , is , are ) a pen in my pencil case . 19. There _______ ( am , is , are ) some apples on the table . Ⅳ 、 根據(jù)