问题 这里的it是代替主语从句还是动词不定式

It is hard to believe that he is all right.这里的it是指动词不定式to believe that he is all right，还是指that从句呢？

话题 同位语从句的时态与主句时态如何呼应

问题 关于since从句中延续性动词的含义问题

老师们，我有以下四个关于since从句，我特别想知道到底要怎么理解since从句的谓语动词与since从句的翻译，特别想知其所以然①I have known him since I was in Shanghai②I have known him since I have been in Shanghai③It's 3 years since I was in Shanghai④I...

问题 状语从句的省略问题

If the first, I would be completely in your way.如果是第一种动机，我参加就是妨碍你们。if条件句的省略，要么省略与主句相同的主语，要么省略指代主句内容的it，比如if possible，但上面这句子的省略不属于这两种情况，省略的主语应该...

问题 关于什么时候用完成时什么时候用过去式的辨析

It's reported that the 2020 Tokyo Summer Olympic Games ______ to 2021 because of the coronavirus outbreak. 选项有Will put off.  Were put off.  Have been put off. 正确答案是第三个，请问第二个和三个的区别，如何辨析，谢谢

问题 如何分析 each class period it is late

...？这里的each class period 可以理解为连词吗？（类似于 each time）

问题 动名词和现在分词作定语

Floating effect 这里是动名词作定语还是现在分词作定语。我查了下字典这里floating 只有形容词用法，既然是形容词用法，那么就是现在分词作定语，但是感觉不能说effect is floating.请问这是怎么回事？

问题 判断that主语从句的用法对不对

...粒直径增大，比表面积减小。在这里，我使用了that主语从句，有些拿不准，还请老师帮忙看一下！

问题 east/ west用法疑惑

...？4 how many degrees east or west they are of the prime meridian 是名词从句做介词宾语吗？

问题 关于不定式的疑惑(本身用一般式但谓语用过去式)

在语法书上看到两个不定式的例句如下：1. To be obeyed was natural to her.2. The book is intended to be read and not to be torn.第一个问题：先说下我对第2个例句的理解，整句是被动语态，又加上不定式的动作发生在限定动词之后，所以不定式使...

问题 by bus, by bike, by ship, by plane可以用作表语吗

by bus, by bike, by ship, by plane 都是表示方式的，一般用作方式状语。如：He gets to the market by bike．他骑自行车到市场去。He couldn’t get the car to start and went by bus. 他因无法发动车子，所以就乘公共汽车去。We went by plane, but sent all our fu...

问题 alone 与lonely 形容词辨析

Every day, when he comes back home, he always feels ______because  he has to do everything ______.A. lonely, alone         B. alone, lonely        C. lonely, lonely         D. alon...

问题 alone 与lonely 形容词辨析

Every day, when he comes back home, he always feels ______because  he has to do everything ______.A. lonely, alone         B. alone, lonely        C. lonely, lonely         D. alon...

问题 定于从句whose的疑惑

Older adults, whose memories were already declining, saw an especially significant improvement.老师，这里的whose，为什么不可以填一个although或者though？逻辑上也可以说得通，不知哪里有问题？求老师指点。

问题 be it什么意思

...assionate in how they handle people, he said, be it demonstrating sympathy when problems arise or simply being specific when asked about delays, saying “20 minutes” instead of just “a few more minutes,” which creates uncertainty and increases frustration.请问文中的 be it 怎么理解？