Problem sets are just a set of questions arranged by LR type (e.g. Flaw, necessary assumption, most strongly supported, etc.) and depending on the course you select, you have access to questions with varying levels of difficulty
Wow, the Cambridge downloads are expensive. I feel pretty strongly about taking 5 section exams, and those plus the sets of drilling problems will set me back more than $400. I guess it's probably worth it.
A) Supports why the amount of lamps ... less lamps found.
B) Supports why the amount of lamps ... less lamps found
C) Supports why the amount of lamps ... lamps were found.
D) Supports why the amount of lamps ...