翻译
computers were still expensive and the Internet was difficult to become cheaper and easier to use. Scientists had also developed software(软件) that made "Surfing"(浏览）the Internet more convenient(方便).
答：答案是那一份详情>>
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>>
