People, can help me answer my survey?
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答：when和while区别是 when的意思是:当...时候。 while的意思也是:当...时候。 但when强调“特定时间”，是一个时间点。如：when...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>>
