Please choose the correct ending to complete the given sentence: Education and Communications: [header] How to do well in any board chemistry exam [title] Find a good teacher to help you understand and memorize the textual part of n.c.e.r.t book. [substeps] A beginner cannot directly jump to the chapter and learn the text. Although some chapters are a bit easy and one can do them on his own.

Ending1: Trust me, a great teacher will have years to learn the basics. [title] Rewrite your first draft that takes you through the entire book. Ending2: And also, there is no direct way to explain what is going on-it all goes into what is written down. Just learn what you can and how to do it well. Ending3: [title] When you enter the exam, don't open the book. [step] Read it one last time till you are confident about what you learn in the chapter and book. Ending4: [title] Ask your teacher to introduce you to the topic and the main concepts. [substeps] After you understand the main topics, tackle the subtopics as this way you won't confuse concepts.

Answer format: ending1/ending2/ending3/ending4