1（2011北京卷）29. __________ volleyball is her main focus, she’s also great at basketball.
A. Since B. Once C. Unless D. While
D
2. All the dishes in this menu,_____ otherwise stated, will serve two to three people.
［2009全国卷Ⅱ，10］
A. as B. if C. though D. unless
【解析】选D。考查状语从句。句意为：菜单上所有饭菜，除非另外说明，将供2~3人就餐。根据句意可知应选D。unless otherwise stated是unless they are otherwise stated的省略形式。as由于；if如果；though尽管，均不符合语境。
