6th grade Reading Proficient Quiz #2 http://www.prepdog.org/6th/6rp2.htm
If you would like to challenge yourself you can try one of these:
6th grade Reading Advanced Quiz #1 : http://www.prepdog.org/6th/6th_rd._advanced_1.htm
7th grade Reading Proficient Test #2: http://www.prepdog.org/7th/7rp2.htm