问题
选择题
读一读，找规律，选择相应的图片。
1. pen, pencil, pen, pencil, pen, [ ]
2. book, ruler, ruler, book, ruler, ruler, book, ruler, [ ]
3. eraser, eraser, ruler, eraser, eraser, ruler, [ ]
4. pencil, ruler, pencil, pencil, ruler, pencil, pencil, ruler,[ ]
答案
1. B 2. B 3. A 4. A