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

话题 sb is hurt to do sth

话题 than is necessary to do sth

话题 The bride to be is Mary

话题 It is sb/sth doing sth

问题 It is adj of/for sb to do sth的句子成分

It is very nice of them to help me out.It is important for us to master the cues of computers．for me, of sb 作什么成分？

问题 ​It is difficult to do sth的句子成分

It is difficult to understand what she's talking about.请问句中的to understand是什么成份？谢谢！

问题 辨别关系代词用作定语从句的表语与宾语补足语

Her girlfriend is not the girl you thought her to be.有人认为这里的you thought her to be是定语从句，省略的关系词为宾语补足语，但我觉得很奇怪，这怎么是宾语补足语呢？明明是表语嘛！用作 to be 的表语啊！

问题 专四华研题目中的一道问口语题

A.“I don't like carrots.” “Me neither.”  B. You are not  so lazy as he. C. Mary is prettier than she.  D. You have the same trouble as I这四个选项的用法对我都很陌生，希望老师能帮我解答，谢谢各位老师！！

问题 an absence of tenable alternatives指什么

"Not out of amity, but rather because of an absence of tenable alternatives, both countries will need to find a new and enduring framework for managing the relationship," the Brookings Institution said in a policy analysis titled "Rising to the challenge: Navigating competition, avoiding crisis, and...

问题 but rather和or rather 的用法

They are not a well-trained group of exercisers, _____ rather a class of participants who are mostly homeless.答案为什么填but,有but rather这个用法吗？可不可以填or构成or rather呢？谢谢老师指导！

问题 句子成分分析

...fter the mass redundancies caused by downsizing in the late '80s---and is still linked to the politics of thrift,in Britain,at least among the middle class downshifters of my acquaintance,we have different reasons for seeking to simplity our lives.老师，帮我分析一下句子成分，在翻...

问题 this可以指多个东西吗(this还是these)

A computer, an old desk and chair—this is all he had when he married me.这里的 this 用得对吗？是否应该改为 these are?

问题 可以用part in my life 吗？

短文改错我把in改成of，原句：it is a important part in my life，可是答案却认为这不需要改，直到我刚才看了一部影片，里面清楚的说到part of my life.