看图,选择正确的句子。 ( ) 1. A. Open your book. B. Close your book. ( ) 2. A. Show me your pencil. B. Show me your eraser. ( ) 3. A. My name's Mike. B. My name's Wu Yifan. ( ) 4. A. I have a pencil-case. B. I have a pen. ( ) 5. A. Show me your bag. B. Show me your book.