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问题 appear to have done 和appear to do 的区别

原句：A desire to sell gold appeared to have been worsened by thinking that concerns about the Greek economy have somewhat eased. 此句中可以用appear to be 吗？Appear to have done 和appear to do 有何区别？谢谢老师精彩解答。

问题 remember，forget用法

...静态动词，那么其现在完成时应表示“从过去持续到现在的状态”，I have remember/forget the man so far.到目前我一直记得那个人。到目前，我已忘了那个人。请问为何都为静态动词，forget的现在完成时却表示“已完成的影响用法”呢...

问题 新概念英语第二册第十课翻译疑点

...d is kept in the living room.It has belonged to our family for a long time.The instrument was bought by my grandfather many years ago.Recently it was damaged by a visitor.She tried to play jazz on it! She struck the keys too hard and two of the strings were broken.My father was s...

问题 一个从句两个疑问词

这两个例子，每个从句都出现了两个疑问词，请问这是什么语法？

问题 与 for several minutes 搭配时,动词该用什么时态?

...; b. gazed at   c.had gazed at   d.had been gazing at这道题目的选项 had gazed at 和 had been gazing at 分别错在哪儿? for several minutes 表示已经盯着看了一段时间了,为什么用gazed at?

问题 关于情态动词表推测的时态问题

①He must have left Beijing,（hasn't he?）②A：Those tomatoes are huge!You must have watered them a lot!   B：Yes,I （did）.They ought to be ripe enough to pick by next Friday.为什么①用现在完成时，②用一般过去时，②能不能用“Yes,I have.”？

问题 请教老师faith的用法问题

请教老师faiths在下面句子中的含意：During this colonial time period missionaries emigrated to all areas ofChina, visiting small villages, distributing Bibles, offering divine salvation and preaching the word of God. A unanimous decision was made by many faiths to attempt to enrich the l...

问题 less and less of...是什么性质的短语

As time went by we saw less and less of each other.这里的less and less是副词短语还是代词？如果是副词短语，为什么加of?

问题 独立主格结构是否可以自带状语从句

They both breathe in deeply, others laughing as they do so.请问各位老师others laughing as they do so是否可以看做是独立主格结构自带状语从句? 其他分词短语作状语是否也可以自带状语从句?

问题 depend that, depend it that与de

动词depend后接从句应用哪个结构？比如下面三个结构，用哪个？depend that…depend it that…depend on it that…

问题 形容词可以修饰形容词吗(With the young unable to afford to leave home...)

With the young unable to afford to leave home and the old at risk of isolation, more families are choosing to live together.这个句子有点奇怪，怎么会用形容词(young)修饰形容词(unable)呢？

问题 过去分词作状语表被动意义？

...ople based on spelling,grammar,punctuation and sentence structure.该句中的两个”based on”应该都是属于过去分词作方式状语，而且base本身也是及物动词，那么过去分词短语"based on"应该是被动意义。但是从句子的意义来看，应该是“我...

问题 表示在某一天的几点钟用不用介词

比如要翻译这样的短语，要不要在几月几日前加介词：1月5日上午8时16分3月12日下午3时30分5月8日下午5时45分9月10日晚上11时30分比如上面第一句，可不可以这样翻译：at 8:16 am on February 5——中间要不要介词on？

问题 口语中直接用To where？提问，是不是省略句啊

是不是由Where are you going?Where do you wanna go?这样的句子在口语中直接省略说的啊，直接说To where？

问题 请问the piece had a simple name中为什么用had而不是has

各位老师好，这是“人教版九年级Unit9 ”中的课文。请问这里为什么用had而不是has？