问题 此句had to可否换成must?

--Did you haveto take a taxi? --I'm afraid Ihad to. 这是新概念第一册第126课的句子，请教专家，此处had to换成must可否？ 谢谢！

问题 分析：​I would of had your babies.

I would of had your babies.老师，of在句子中的作用是什么？它是什么词性？

问题 表示“原认为”用thought还是had thought

We thought we might win, but in the end we lost the game. 请问这个句子对吗？我是说，这里的 thought 要不要改成 had thought？谢谢专家！

问题 among which的用法分析

Secondly, there are many attractions that interest me a lot, among which is Big Ben.其中among which是什么用法？麻烦老师们详细划分一下成分，分析用法并翻译，谢谢！

问题 who had looked after，who looked after her过去完成时用法疑问

Five years earlier, her mother had died of cancer. It was her father then who had looked after everything - her mother's operation, then the funeral. And after her mother's death, it was her father who looked after her and her younger sister, and had seen them through school, and then college for he...

问题 had made of 的用法与理解

I had made of the hillside villages, and I could see this wall representing the village of Lycovrissi.请教老师 made of 的意思，这里是表示“了解”吗？翻译为“我知道山上的村庄”对吗？谢谢老师！

问题 They had made a mess of the house.改被动

They had made a mess of the house.这句话改被动：动宾做主语：A mess had been made of the house.介宾做主语：The house had been made a mess of.为啥这两句中都没有原句中的主语They 啊？不能在后面加上by them 吗？是有动宾和介宾都这样吗？我做了几...

问题 ​If it had been for...是什么语法

If it had been for your timely assistance in giving me first aid, I fear…

问题 是陈述语气还是虚拟语气辨析

请教曹老师：My old friend, Harrison, had lived in the Mediterranean for many years before he returned to England.He had often dreamed of retiring in England and had planned to settle down in the country.He had no sooner returned than he bought a house and went to live there. Almost immediately...

问题 为什么不用 had been born？

She said she _____ (be) born in 1992.为什么这儿要用 was born 呢？用 had been born 不是更好吗？ 她说是一个过去式 在她说之前出生的用过去完成时啊！！

问题 是不是省略句？

Industrial production fell by2.8％ in the year to March,the worst slide since the Second World War.感觉逗号后的句子不完整，The worst前是不是省略了which has been?请详解。

问题 'd rather是had rather还是would rather

请问 'd rather 中省略的那个词是 had 还是 would，另外这两个的用法怎么区分呢？

问题 变间接引语时 must 必须变 had to 吗

He said,"I must clean the room."变间接引语，must必须变had to 吗？must既然没过去式不变行吗？

问题 这是强调句还是主语从句呢

(  ) his work was still as it had been ?A.It was why that  B.Why is that   C.It is why that   D.Why was it that老师：答案选D.Why was it that his work was still as it had been ?= It was why that his work was still as it had been - 这是强调句。= Why his work was still as it had been ...

话题 if I had been you