1这2个结构,用在现在时态时,always还有什么作用,可以去掉吗?2have always been doing 和 have always been done意思一样吗,是否可以互换?比如这个例句:She's always been willing to lend him a hand whenever he's in difficulty.
May not be
providing表达什么意思?是什么时态。so have
them是什么结构?
It seems schools may not be
providing an opportunity for children to re-express their ideas and so have
them tested and refined by teachers and their peers.
...And
though value may increase, it is vital that accessibility remain low; since so many of the issues to which block chain technology
can be applied affect the poor with disproportionate severity, it is essential that affordability is not a barrier.最后一句的意思是这个技术会导致贫...
Not knowing his telephone number,she had some difficulty getting in touch with Bill.getting in touch with Bill 中的成分是怎么划分的,get in + touch witch? 另外,为什么例句中用getting 而不是to get? 句子看不出是进行时态吧?
一道时态题,请曹老师回答,谢谢您:While the moon was rising, it ________ (shine) bright. it was so
beautiful.答案给的是 shone, 为什么不是was shining? 谢谢您!!!麻烦问下,while 前后的进行时,一般是不是表示对比,另外shone 可以表示状态么...
根据主将从现的原则,条件状语从句不是不能用将来时态吗?但为什么下面一句却用了 if you will…呢?这该如何理解?I’d be grateful if you will let me know soon. If you will sit down for a few moments I’ll tell the manager you’re here.
我想请问下独立结构与时态有关吗?比如表示过去,将来,这种怎么表示?
然后还有就是完成时的独立结构,比如They having been working for three hours.和the homework having been done 对吗?将来时又如何表示独立结构呢?
最后一个就是,...
These years the boss made a lot of money.Between these years the boss made a lot of money.请问:these years 与 between these years 有什么区别吗?它们连用的时态有什么讲究吗?谢谢!