If you don't read critically, and look for the tone of the author and the main idea of the passage, then when you'll read a question, EVERY answer will seem like the right one. It's tough to explain, just take a practice verbal test (NOT Kaplan, NOT Gold Standard, but ExamKrackers or AAMC, but you shouldn't waste AAMC early on).
It's not just reading comprehension, and you won't find the answer in the passage. Rather, take what you got from the passage, and use it to answer question based on inferring what the author implies, or extrapolating it to answer something outside the context of the passage.