问题 have no idea （in）doing还是to do

问题 in answer to是否等于to answer (可相互替换)

问题 on my holidays还是in my holidays

表示“在我的假期里”，用什么介词？是 on my holidays 还是 in my holidays？谢谢！

问题 for example在句子中的位置问题

...了开支，例如高速公路的建设。The government has reduced spending in several areas, for example in the construction of highways.The government has reduced spending in several areas, in the construction of highways, for example.The government has reduced spending in several areas in, for ...

问题 mistake后面是接in doing, of doing, to do的区别

He made the mistake of leaving his valuable record collection with a former girlfriend.请问句中的 of leaving可以换成 in leaving或 to leave吗？

问题 什么是补充性状语或举例状语

...原因状语，条件状语，让步状语，比较状语以及目的状语和结果状语。但是语法书和网上几乎没有讲到补充性状语或举例状语。老师是否能在此提供一些资料，帮助我们系统性理解和学习。非常感谢。

问题 翻译:One key to ancient life comes in the form of...

One key to ancient life comes in the form of petrified matter.这句话怎么翻译？

问题 ​There is no talking loudly in public place.这句话对吗

公共场合不准大声说话。There is no talking loudly in public place.请问：这句话这么说正确吗?

问题 it 指代疑问（followed in countries influenced buy it）

Another popular sport, cricket, is originally from the UK, and has been exported to and followed in countries influenced by it, such as Australia, India, Pakistan,Kenya ana pouth Africa.请问，influenced by it 中的it指的是谁，以及这样用是否符合语法？

问题 A friend in need is a friend indeed的省略分析

a friend in need is a friend indeed请老师分析一下这个idiom， 或者把省略的部分补充完整。 因为我理解的意思是：需要帮助的朋友是真正的朋友，还有跟实际意思相反。

问题 make demands of的of的意思

...要求”是 make demands on，不是of。所以我只能理解of在这里和demands表达一种所属关系，表示它的科研机构的需求，这样一来，demands of its scientific establishment 整体放在前面作为先行词才对。百思不解。我也想过，可能demands是作wants...

问题 还是leave, lose, forget与地点连用问题

I _____my key at home. A left B lost C forgot确实在某一张试卷中看到该题，个人觉得该题不够严谨。因为觉得选择B也是可以的。盼专家老师指导。

问题 countryside前必须用定冠词吗

...但是我看到有下面这样的句子：Our countryside is disappearing at an alarming rate. 我们的农村地区正在以惊人的速度消亡。

问题 表示“后来”的later要连用过去时动词吗

At his annual press conference later, Mr Li stressed the importance of reforms to economic vitality.请问：later 不是表示“后来”吗，为什么 stress 用过去时？

问题 or表示“或者说”的用法

...饰语等]那就是，即；或者说：You should come or send a representative at least.你应该来，或者说，至少派一位代表来。我想，词典既然单独将此列为一个义项，也就是说它跟“或者”这个义项存在差异。请问老师，能举出更多or表示“或...