【单选题】判断一种生产关系是否先进的标志是看它是( )。
【简答题】I watched her closely as she _________ her creamy brow in concentration.
【简答题】教育的两大功能是: 和通过培养人促进社会的发展。
【单选题】I watched her ______ in the next room last night .
【简答题】As I watched her struggle to put onefoot in front of the other, I found myself breathing for her and urging her forward. (Para. 8)