语法填空专项训练

• 来源期刊: 新世纪智能
• 学科: 教育
• 关键词: 语法填空 专项训练 DAUGHTER
• 年，卷（期）: 2020,（60）
• 页码范围: 25-28
• 页数: 4页
• 分类号: G63

摘要

Russia on Tuesday has become the first country to _(official)register a coronavirus vaccine(疫苗)and declare it ready for use _ widespread international criticism.President Vladimir Putin said that one of his daughters has received it.Putin emphasizes that the vaccine _(prove)efficient,_(offer)a lasting protection from the disease.