请教中译英（回答我的几个问题）
前两天在报纸上看到一则报道,所中国有超过3/5的中小学生通过补习取得更好的成绩.
书上的翻译是:I read a newspaper report the other day that more than three fifths of Chinese school children rely on extra tuition to enhance their grades.
这是同位语从句的用法么?
如果我这么说可以么——I came across arepor in the newspaper the other day ,which said that more than three fifths of the Chinese school children make progress in(是用in么?) their grades by having remediation.
额……我翻得那一句有个地方打错了——across后面是 a report