12. She couldn’t help___________ tears when she read the news about the difficult situations of medical staff in the fight against COVID-19. A. shed B. to shed C. shedding D. sheds 13. Students stopped ________ noise when the teacher came in. A. make B. to make C. making D. made 14. My parents don’t let us _____ violent movies. A. to watch B. watch C. watching D. watches 18. Students/ be interested/ do/ online exercises/ when/ at home. A. Students are interested in doing online exercises when they are at home. B. Students are interested doing online exercises when they are at home. C. Students were interested in doing online exercises when they are at home. D. Students were interested doing online exercises when they were at home. 19. People/ not allow/ get together/ crowded places/ everywhere/ Vietnam/ now. A. People are not allowed to get together in crowded places everywhere in Vietnam now. B. People are not allowed getting together in crowded places everywhere in Vietnam now. C. People are not allowing to get together in crowded places everywhere in Vietnam now. D. People are not allowing getting together in crowded places everywhere in Vietnam now. 20. The government/ make/ every effort/ stop/ rapid spread/ COVID-19. A. The government has made every effort stop the rapid spread of COVID-19. B. The government has made every effort stopping the rapid spread of COVID-19. C. The government has made every effort to stop the rapid spread of COVID-19. D. The government has made every effort to stop the rapidly spread of COVID-19.