哪些从句作主语时可用it作形式主语 原则上说,it用作形式主语可以代替下列从句: 1. that从句 It is quite clear that he has read the book. 很显然,他读过这本书。(HM) 2. what从句 It doesn’t matter what he says. 他说什么没关系。(HM) It was clear enough what he meant. 他的意思是很明显的。 3. who从句 It hasn’t been decided who will be sen…