单项选择题
A. The woman’s uncle will come for a visit. B. He thinks the woman should visit her uncle. C. He asks the woman to go over to his place.
A. Poultry will infect many people. B. The disease can spread quickly among people. C. There will be human-to-human transmission. D. A new disease combining bird and a human flu will break out.
A. half a century B. about a quarter of a century C. a whole century D. over three quarters of a century