首页 > 留学知识库

问题: 怎么理解这个句子?选哪个答案?

_________ we no longer make such great efforts to do cleaning as we did during the outbreak of SARS ,we have formed the habit of paying more attention to hygience (卫生).
A. When B. While C. Since D. As

解答:

用while,意思是“尽管,虽然”。句意:虽然我们不再像“非典”爆发时期那样使劲地搞卫生了,但我们已经养成了更加注意卫生的习惯。