将下列简单句组成复合句
4.the trees are being cut down. they were planted ten years ago. the trees __________________________________ 5.the hotel used to be a palace. the managers are staying at it. the hotel ___________________________ 6.the train started at 4:45.li gang missed it. ______________________________________________
答：I want to know....Will your father go to Shanghai tomorrow? 复合后： I want to know ...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>>
