11. You should _______ more attention to what your teacher explains. a. make b. get c. set d. pay 12. Our teacher often said, "Who knows the answer? _______ your hand." a. Rise b. Lift c. Raise d. Heighten 13. This is the instance where big, obvious non-verbal signals are appropriate. a. situation. B. attention c. place d. matter 14. They started, as _______ gatherings but they have become increasingly formalized in the last few years. a. informal b. informally c. informalize d. informality 15. Children who are isolated and lonely seem to have poor language and ….. a. communicate b. communication c. communicative d. communicator 16. The lecturer explained the problem very clearly and is always _______ in response to questions. a. attention b. attentive c. attentively d. attentiveness 17. The functional skills such as fundamentals of agriculture, health and hygiene and population education have also been incorporated in the primary school _______. a. curriculum b. project c. plan d. schedule 18. Regardless of whether schools belong to the government or are independent, they are …… to adhere to the same curriculum frameworks. a. told b. required c. demanded d. taken 19. In Scotland, students transfer from primary to secondary education at approximately age 12. a. compound b. base c. change d. move 20. He was so ill that he could not _______ his final examination and cancelled it to the next year. a. make b. do c. take d. gain ( Giải thích hộ mình nha )