Mark the letter A, B, C, or D to indicate the word or phrase that best fits the number blank in the reading passage. When you graduate from high school or university, is learning finished? The answer is no. In (1) _______ countries, people continue learning all their lives. Why is lifelong learning important? How can it help you?Lifelong learning can be useful in many ways. People who want to change careers often return to study at a university. Some professionals require employees to keep learning new (2) _______ to do things. For example, doctors and nurses must always learn about new illnesses and treatments. (3) _______, they must practice the skills they have and keep learning new ones.Lifelong learning can help people stay healthy and independent. Many older people also feel that lifelong learning help them stay close to young people. Lots of older people are now learning how to use computers. “ I want to (4) _______ active for my own health”, said Mr. Salinas, a 91-year-old man taking computer classes. “I see my computer learning as part of an active life and something (5) _______ I can share with my family” Question 17.(1)A.eachB.everyC.lotsD.manyQuestion 18.(2)A.waysB.roadsC.routesD.pathQuestion 19.(3)A.AlthoughB.MoreoverC.HoweverD.ThereforeQuestion 20.(4)A.remainB.liveC.studyD.workQuestion 21.(5)A.whereB.whomC.whatD.that