Every Monday morning, 73-year-old Li Lanjuan sits in her office, ( receive) patients. Despite being a leading figure in China, Li regards herself as ordinary medical worker. When the COVID-19 broke out, Li, without any ( hesitate) , joined the expert group and headed for Wuhan lo fight against the disease. As soon as the team found that the new virus can be transmitted from person to person, she handed her proposal Wuhan should be (immediate)locked down to the central government. It (adopt)the next day and proven to be (effect) idea. Constant work allowed her very little time (sleep). When a picture of her (exhaust)face was posted on the Internet, many Internet users shed tears. But Li smiled and said, "I'm in good health", and continued to "race time", Li has been fully committed to her job. No wonder many call her'' a female fighter on the frontline".