Read the following passage and mark the letter A, B, C, or D on your answer sheet to indicate the correct answer that best fits each of the numbered blanks.

Tests and exams are part of our school life. They have an important role ___(1)___ students' learning and education. Preparing for exams is a skill and not every student knows ___(2)___ to do it. Many students think that the easiest way is to learn everything by heart, but this isn't always the case. Knowledge is ___(3)___ more than remembering facts - it also involves understanding the information you learn. When you study for an exam, try to understand everything. Also, ___(4)___ attention to details. Another mistake that students make is listening to music and chatting on Facebook while they're learning. This does not ___(5)___ concentration!