问题 选择题 把下列字母大小写互换,并选择对应的汉语意思。( ) 1. book _______________( ) 2. ruler _______________( ) 3. pencil _______________( ) 4. BAG _______________( ) 5. PEN _______________A. 尺子B. 铅笔C. 书包D. 钢笔E. 书 答案 1. BOOK-E 2. RULER-A 3. PENCIL-B 4. bag-C 5. pen-D