II. For questions 11- 19, read the text below and think of the word which best fits each gap. Use only one word in each gap. RUNNING A MARATHON So you want to run a marathon? There is (11) ........................................... doubt that running 42 kilometers is a great achievement. Many training plans involve running four times a week for at (12) ........................................... three months, and sometimes longer. Experts strongly recommend that you should (13) ........................................... used to running long distances gradually. If you don’t, it can increase the chances (14) ........................................... picking up an injury. It (15) ........................................... generally thought that runners should initially go on fairly relaxed training runs. The pace should be gentle enough to allow you (16) ........................................... have a conversation with someone running alongside you. Don’t make the mistake of eating too little before the race, or you will rapidly run (17) ........................................... of energy. But (18) ........................................... should you eat a large meal. It goes without saying that choosing the right footwear is also essential. (19) ........................................... you do, avoid clothes made of cotton and go for artificial materials, or even some types of wool such as merino. Choose clothing that will be comfortable.