英语
A network of good friends,rather than close family ties,_____you live longer in your old age,according to a research in the Journal Health. A help B helping C helps D to help
C helps 这里缺少谓语 A network of good friends 主语 according to a research in the Journal Health---介词短语
A help 这里缺少谓语 A network of good friends 复数主语动词不加s
选择B。helping 因为下一个逗号后面跟的是according 这里是为了保持句子语态的一致性,所以用HELPING
答:C.Remember"have somebody do something".详情>>
答:B 被动语态,be found to do. A中的made与found均为过去分词,冲突!详情>>
问:hArd work 和hArd--working有什么区别
答:一个是名词 一个是形容词撒详情>>