题目内容：

阅读下面材料，在空白处填入适当的内容（1个单词）或括号内单词的正确形式。

The average 11-year-old boy 1. (measure) about 1.4 meters, according to data 2. (release) last year, But a boy called Ren Keyu was that tall when he 3. (finish) kindergarten. At 2.06 meters tall, he towers over his classmates and requires 4. special chair just to be able to sit at his desk 5. (comfort). Teachers often mistake Ren 6. a much older student and ask him to return to 7. own classroom, when they see him for the first time. Some students make fun of him for his unusual 8. (high) and people often stare at him in the streets. 9. , he hopes that his stature will be an advantage, as he tries to get his name into the Guinness Book of Records. He wants to apply for the record of world’s 10. (tall) 6th-grader.