be＋adj.+doing sth.
问题描述：
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.
答
be busy doing 忙于干某事 be worth doing 值得干某事只有这两个吗？It is no use doing sth.It is a waste of time doing sth.It is useless doing sth.It is no good doing sth.