BytheyearshearrivesinLondon,scientistsprobably 国语站 题库 1.91W 大中小设置文字大小 问题详情：By the year she arrives in London, scientists probably ____ a cure for bird flue. A. will be discovering B. are discovering C. will have discovered D. have discovered 【回答】C知识点：将来完成时及其被动式题型：选择题 TAG标签：#
