What’s the matter with you, Sandy? — I’m _____a bad cold.

After that, he knew he could ________any emergency by doing what he could to the best of his ability.

Ten years had passed theCCTV event People Who Moved China took place in 00.

till working on my project.— Oh, you’ll miss the deadline. Time is____________.

依次填入下列各句横线处的词语，最恰当的一组是（ ）①逐步推广使用清洁的可再生能源，减少使用污染环境的能源，是 环境恶化的正确选择。②国庆长假期间，凡在本公司购买商品满1000元者，本公司将 价值100元的礼品券。③作者科尔曼年轻气盛，观点鲜明，但常常论据不足或论证不周，______显得犀利有余，老练不够。④连学好母语都需要花大力气，下苦功夫，_______学习外语呢