Combining the following three sentences by using a cohesive device: Tom's work at school is above the average. Harry's work is below the average. Tim's work is about up to the average.
【正确答案】：Tom's work at school is about the average, while Harry's is below that, and Tim's is about up to it.
【题目解析】：为了避免句子重复累赘，可用that, it指代the average, 用名词所有格's表示”...的“。
