Fill in the blanks with the words from the list----- Nội dung ảnh ----- Fill in the blanks with the words from the list. There is one EXTRA word that you don’t need. key repetitive energy Question 19. Some people believe that doing something __________ like counting sheep can help us to sleep. Question 20. Regular exercise is the ________ to staying in shape. Read the following passage and mark the letter A, B, C, or D to choose the word or phrase that best fits each of the numbered blanks from 21 to 25. Viruses cause many human diseases, ranging from the common cold and the flu to more serious ones such as AIDS and Covid-19. On their own, viruses are not (21) __________. They become active when they infect or enter our bodies. They can do that easily because they are very small. Then, they start to act like living things and make copies of themselves. People have natural (22) __________ against viruses. For example, a fever can make some viruses inactive. The body's immune system also fights viruses. Vaccines cannot treat diseases caused by viruses, but they can help (23) __________ the spread of disease. Vaccines contain viruses which are weakened or dead, and help the body's immune system make substances called antibodies, which (24) __________ disease. If the same virus enters our body later on, the immune system will recognize it and will know how to fight it off. Giving people vaccines can save a lot of lives. For example, most recently, vaccines have played an important (25) __________ in reducing deaths and severe illness caused by Covid-19 all over the world. (Adapted from English 11 Global Success Workbook by Hoang Van Van et al.) Question 21. A. passive B. still C. alive D. dead Question 22. A. defenses B. effects C. improve D. increase Question 23. A. mix B. cause C. view D. role Question 24. A. prevent B. cut C. fix D. load Question 25. A. habits B. still C. role D. energy |