问题 Isn't that the way it is when...怎么理解

Isn't that the way it is when we take the time and make the effort to do something for someone else?请问：(1) Isn't that the way it is 是什么意思？that 和 it 分别指代什么？(2) When引导的从句应该是后置了，它引导的是主语从句吗？

问题 which I believe is 中 I believe在句子中的成分

...d the vast majority of my time on the customer experience, which I believe is the most important driver of our business. 我花费大量的时间在用户体验上，我相信这是我们这个行业最重要的驱动力。我感觉这里which is the most important driver of our business.这整句...

问题 如何理解This is where I belong这样的表语从句

This is where I belong. 这句话是什么用法呢？belong 后面不应该东西么？where 为什么可以连接呢？

问题 It is time for supper 的句子成分分析

It is time for supper 的句子成分分析。句子中的介词短语 for supper 是什么成分？是定语吗？我在语法书上怎么没有找到这样的分析呢？

问题 从句判断（His height is double what it was...）

 His height is double what it was three years ago.请问,句式上不太明白这是什么从句?

问题 It is time you made...的用法分析

You are twenty now, and it is time you _______ the decision for yourself.A .made B. make C. making D. makes谁可以讲讲made在这句子里是什么用法？

问题 a lot of it is genetic. 介词后面加句子

There are much bigger contributors to our weight and a lot of it is genetic.介词+句子???

问题 sth is available to do 结构

科斯林available词条有一例句，Since 1978，the amount of money available to buy books has fallen by 17%.该句用了available to do sth作后置定语，简化得sth is available to do sth.但是available好像没有这种结构吧？？？即使有，那么to do作什么成分呢？？？

问题 the place is worth visiting。

想问 worth是表语，那么visiting是什么成分？谢谢

问题 not否定哪个成分

1. He is no fool. 2. He is not a fool.    3. He is not fool. 句1中 no 否定名词 fool？句2中 not 否定 is? 句3中 not 是否定 is 还是否定形容词 fool？

话题 sb is hurt to do sth

话题 than is necessary to do sth

话题 There is no subject to which

话题 A horse is a useful animal.

话题 The bride to be is Mary