Here is the link to exam 2 of the Spring 2003 semester. Here is the link to its supplement. Use the lab time to work on the old exam as a way to prepare for the upcoming exam.
Here are some review exercises on LRStruct!
Feel free to discuss the problems with your lab mates. The labbies are there to help you too.
Exam 2 will cover materials from week 05 to week 10 inclusive.
Relax, enjoy the learning, and don't forget to get plenty of sleep and have fun!