be adj to do/doing结构在这里做什么成分the book is worth reading.the meeting is sure to be a greet successful.()

be adj to do sth可以换成be adj doing 为什么? be adj to do sth是不是和be adj in doing sth是一样的? be+adj.+doing sth和be+adj.+to do sth哪个队 英语语法里如何区别be adj后面加doing还是to do?比如 be worth doing be adj to do/doing结构在这里做什么成分the book is worth reading.the meeting is sure to be a greet successful.() be＋adj.+doing sth.一般规律：be＋adj.+to do sth.跪求be＋adj.+doing sth.的特殊搭配...请写全哈. it+be+adj+to do something和it+be+adj+doing something的区别尽量简单而准确 it's adj+to do还是doing? have +adj+ time+doing还是to do 求解一个英语语法：They are +(adj.)+to do这个是不是不能用They are +(adj.)+to be done?那表被动是不是 They are +(adj.)+to doing? 用 forgive sb for sth / doing sth 造句 be+adj+enough+to do sth 造句中文 be adj enough to do sth造句 sth+be+adj+to+do造句 be+adj+to do sth 造句 be+adj+都要加to do吗? be adj. to do 短语 10个 主语+be+adj+to do sth 例句 为什么用be busy doing而不是be busy to do我觉得这个用法应该是be adj.to do 比如说be easy to do 为什么这个是be busy doing