Coronavirus disease 2019 (COVID-19), which causes serious (36)............ illness such as pneumonia and lung failure, was first reported in Wuhan, the capital of Hubei, China. The etiological agent of COVID-19 has been confirmed as a novel coronavirus, now known as severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2), (37) ................ is most likely originated from zoonotic coronaviruses, (38).............. SARS-CoV, which emerged in 2002. Within a few months of the first report, SARS-CoV-2 had spread across China and worldwide, reaching a pandemic level. As COVID-19 has (39).............. enormous human casualties and serious economic loss posing global threat, an understanding of the ongoing situation and the development of strategies to contain the virus's spread are urgently needed. Currently, various diagnostic kits to test for COVID-19 are available and several repurposing therapeutics for COVID-19 have shown to be clinically effective.(40) ......... , global institutions and companies have begun to develop vaccines for the prevention of COVID-19. Here, we review the current status of epidemiology, diagnosis, treatment, and vaccine development for COVID-19. Question 36. A. respiratory B. epidemic C. isolated D. infectious Question 37. A. where B. which C. that D. whose Question 38. A. like B. the C. with D. as Question 39. A. spread B. made C. cause D. triggered Question 40. A. Therefore B. However C .In addition D. Since