学生们进来时，手里拿着削好的铅笔，所见之处一本蓝皮书也没有。
When the students came in, sharpened pencils in hand, there was not a bluebook in sight.
学生们用黄色、蓝色或橙色的钢笔或铅笔标出主要思想和重要细节。
Students mark the main ideas and important details with a pen or pencil, yellow or blue or orange.
这名小学生按颜色把铅笔分类。
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