老师，请问 My parents wanted me to be a doctor，but I couldn't have put up with those years of study. 这个句子为什么要用完成时have put up with 是couldn't have down表示对过去的推测吗？没有上下文
句子：A student should be given the right to decide whether or not to learn a foreign language.问题1：whether or not 的词性、用法（前后形式）是什么？问题2：whether or not 在此处，是否有更好的表达方式（换到其他位置），同时保持意思不变？感谢...
If you should change your mind, do let me know.除了should do这里可以用其他表达虚拟语气吗？比如，changed your mind 或者your mind be changed或者your mind were changed其实就是问表达将来时候的虚拟语气，用什么?
...s energetic director, Sabyasachi Mukherjee, asked his staff what it should be doing, chief among the ideas put forward was to reach out far more, not just to Mumbai city-dwellers who would normally never think of visiting a museum but to other museums around the world.请问：句中的chief among.....
Does a cultural relic always have to be rare and valuable? Is it enough to have survived for a long time?【问题】这是新课标人教版高中英语必修2的句子。1. Is it enough to have survived for a long time? 这个句子是什么意思？2. It 是人称代词还是形式主语？3. eno...
When he comes to my house tomorrow, I will be typing the letter.当他明天来我家时，我将正在打信件如果改成 When he comes to my house tomorrow, I will have typed the letter.是否可以？为什么？
An even better case can be made for splitting the conjunction class into subordinators, which link a subordinate clause to a superordinate clause, and coordinators, which link coordinate constructions.请问这个句子的大意是什么？其中的conjunction class 和superordinate clause 是什么...
Episodic memory can be throught of as a process with several different steps of memory processing.请问 processing， 之前一般的句子都是动词ing的形式放在介词后面，但是这里放在了memory后面，这是什么用法？
...throw footballs, watch other people throw footballs and decide wheather to be happy or sad about the results of football throwing?老师，这个when, 我觉得也可以填after吧，细微的差别在哪里呢？
The notice came around two in the afternoon_______ the meeting would be postponed.A. when B. that C. whether D. how这个题目其实考察的就是同位语从句。但是如果非要较真一下，把in the afternoon中的afternoon作为...
_______，if I had arrived yesterday without letting you know beforehand.A．Would you be surprisedB．Were you surprisedC．Had you been surprisedD．Would you have been surprised这个题目还是困扰着我，与过去事实相反的假设，那么主句的那个事情不是应该在已经发生...