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问题 for在句中的含义，可以用其他介词代替吗

The government relies on taxes from the food industry for more than half its budget.

文章 新外研版-高中英语-选择性必修1-词汇表(附音标)

...乐health care医疗保健cheer up (使)高兴起来，(使)振作起来do the trick奏效，达到预期效果examine /ɪg'zæmɪn/v.检查(身体)advertisement /ad'vɜːtɪsmənt/ n.广告employer /ɪm'pɪɔɪə/ n.雇用者，雇主essential /r'senʃ(ə)/ adj.极其重要的，必不可少的impr...

问题 这个现在进行时如何翻译

I have won a holiday for 5 weeks to Finland, I _____ my mom. A. am taking   B. have taken   C. take   D. will have taken 答案是 A，我感觉也是 A，请老师帮忙翻译一下这个句子，顺便讲讲这是一种进行时的特别用法吗？这种用法...

问题 动词现在式是一个单词还是复合形式

I visit my grandparents four times a month.上文中的visit是do (to) visit的省略形式还是缩合形式，visit是简单的一个普通的单词呢？还是一个类似于can't,am eating,have drunk，would go这样的复合形式呢?谢谢回答。

问题 现在完成时是否可以与一般将来时连用

有一个单选题：When I ______ this letter, I ______ it to you.A. have written, will show   B. wrote, would show答案是 A，应该如何理解？另外选 B，当做虚拟语气理解有何不可？求教各位老师。

问题 keep sth done的疑问

He tried to keep his head turned decently away.曹老师您好，这里请教您一下，turn away（转头）应改是个短暂动词，这里为什么能和keep连用? 短暂性终止动词在状态改变后难道可以和延续动词一样表示状态吗? 比如 close，在keep window closed中...

问题 怎么判断介词后面是动名词复合结构还是介宾结构

Like virtual schools operating in other states, Florid Virtual allows faculty to provide personal courses.请问怎么判断operating..是分词定语还是动名词复合结构？

问题 do everything one can do的省略规则

He did everything he could (do) to help us.请问这句话是否可以理解为省略了括号中的部分呢？如果可以的话，省略的规则是什么呢？

问题 outside of school的词性理解与语法分析

What do you do to relax outside of school?这是2019版人教版高中英语新教材必修一的 Unit 1（p11）上的句子。outside 本身不是介词吗？为什么还要加介词 of？

问题 than后面可以直接加if从句吗

尊敬的老师，学生想咨询一下than后面可以直接加if从句吗? 就比如这句话：These shares may fetch less than if their owners had waited for their employer to go public.这些股票的价格可能低于其所有者等到其雇主上市时的价格。

问题 every time that 与 every time when

We went to see her every time that we had a chance.请问这里为什么用 every time that，而不用 every time when？

问题 if 虚拟条件句中时态用法

•We can offer you refunds if the goods you returned are not dirty and unusable.•You can get refunds if the goods you returned remain clean and usable.请问这两句话中 if 后的时态是否正确？ 

问题 with 短语是作伴随状语吗

It has faced a growing population, and with it the high demand for housing. 请问 and 是连接 a growing population 和 the high deman for housing 吗？ with it 是做high demand for housing 的伴随状语吗？ 谢谢!

问题 could在本例中的功能

A1: Who parked the car there last night?B1: It could have been Tom.上面第一组对话没问题。很好理解。A2: Who parked the car there last night?B2: It could be Tom. 上面第二组对话B2的回答到底是什么意思？

问题 speculate on 和 speculate in有什么区别

有时候我看到 sptculate on the stock market  但有时又看到 speculate in the stock market这两种写法有什么不同吗 ?