【急用!】well down 和that's it.一般什么时候用

【急用!】well down 和that's it.一般什么时候用 It's well-known to all that... That's more like it.这句话,什么时候用? 什么时候指人用it和that? it 's well known that 还是it 's well-known that That's___wonderful film that it's well worth___a second time It's a pity that的用法 什么时候用虚拟语气?什么时候不用? 谁知道莎士比亚的As You Like It和All's Well That ends Well分别对应的中文书名? good jod 和well down 怎么用 It's a pity that too many trees______now.(cut down) what's that down It's a sytem that works____(很好的)well