问题 for sb to do sth 中的不定式用一般式与完成式的区别

请问专家老师：It is a bad decision to have come here 是否可用 It is a bad decision to come here代替？此外，是否存在，it is... for sb to have done sth 结构；如存在，是否可以替换成 it is.. for sb to do sth 结构？

问题 be heard to do sth 与 be heard done 用法的疑惑

—The plan is heard _____ so well that we don’t have to make any changes.     — It is indeed.A. to design         B. designing      C. designed         D. design     这题选 C，但是 sb is heard to do st...

问题 the water has become dark and dirty, it's no longer safe to drink. no longer和to drink做什么成分

问题 learning to learn是什么意思

learning to learn是什么意思？这是高中英语新教材北师大版必修一第4页最上面的一个短语，不知道如何理解和翻译。

问题 say sorry to 中 sorry 的词性

say sorry to sb这里sorry是什么词性呢？

问题 Thank you to...是什么用法

常见句型Thank you to so many dear friends.中为什么又是you又是so many dear friends，这是什么逻辑

问题 Words are difficult to spell的不定式做什么成分

Some English words are difficult to spell.请问这里的 to spell 做什么成分？

问题 to live在时间名词后定语要不要介词

The doctors have told him that he has only 6 months to live, but he won’t accept it. 医生告诉他他只能活6个月了，可是他不接受这一诊断。请问这里的 to live 是定语吗？它后面为什么没有介词呢？

问题 taken away this week to much bleating.怎么理解

...enjoy protected benefits, such as free access to the BBC, taken away this week to much bleating.

问题 This decision is for you to make的改写

This decision is for you to make是否可改写为It is for you to make this decision?

问题 关于不定式用主动表被动（exciting to watch）

It is represented by three events: horse racing, wrestling, and archery, which are all so exciting to watch.请问这里的不定式 to watch 为什么不用被动式啊？

问题 分析：He is too kind to refuse us.

请分析：He is too kind to refuse us.句中的不定式 to refuse us 是什么成分？肯定是状语吧？是什么状语？在什么书上有分析吗？

问题 manage to do sth为什么不用过去时

I manage to solve the problem.为什么manage to do sth表示设法做成了某事，可是却不用过去时，都做成了那应该用过去时态啊？

问题 be supposed to表示“本来该做而实际未做”的疑问

...词典上查询 suppose 的用法时又碰到了新的问题。be supposed to 有时可表示“本来应该做而实际上没有做的事”，《朗文词典》在归纳此用法时有这样的说明和例句（注意最后一个例句）：本应（本该）做某事/是某事〔用于表示某...

问题 phone sb to do sth中的不定式是什么成分

He phoned us to attend the meeting as scheduled.He phoned me to say the meeting would be postphoned.请问这两句用的都是 phone sb to do sth，但其中不定式的用法是不同的，对吗？我指的是它们的句子是不同的，对不对？请老师分析一下，谢谢！