I studied reading comprehension by reading the news every day, and reading books for fun. The questions are mostly asking for specific details in the text.
My strategy was to read through the text at a steady pace I felt comfortable with, and understand the main points of every paragraph. I didn't bother trying to memorize any details or facts, I just got the main gist of the passage. Then I went through the questions and for each question I would go back and find the answer in the text. If I felt like I was spending too much time searching for an answer I guessed, starred the question and moved on. I ended up finishing with 10 minutes left, which gave me ample time to go back and review the starred questions.