话题 have yet to do sth

话题 be about to do sth

话题 be too difficult to do

话题 involve sb to do sth

话题 seem not to do sth

话题 may do what we like

话题 fail to to do sth

话题 fail to to do成分分析

话题 intend sb to do sth

问题 for sb to do是否可以做定语

求教，for sb to do 是否可以做定语？例如： Thought this would be an opportune time for you to apologize. 不过现在是你道歉的好机会

问题 do manage a little sight-seeing意思理解

the playgoers do manage a little sight-seeing along with their playgoing这句话不明白，如何理解？句子中的 do manage a little sight-seeing是什么意思呢？

问题 怎么判断某一成分是否为插入语

Which of the following sentences is CORRECT？A. What do you say that the population of Beijing is? B. How many people do you think to stay here?C. Who do you guess is singing?D. What do you tell that is?本题考查的是插入语。题目解释为do you tell不做插入语，但为什么do you say...

问题 英语可以说leave sb to do sth吗

如果可以说leave sb to do sth，那它与leave sb doing sth有区别？

问题 but the aim is to diversify risk,not concentrate power.

老师请问一下 concentrate 是动词不定式省略to 后的成分，还是和 concentrate power 一起做名词成分?not concentrate power 在句子中做什么成分，主句的省略，还是做状语。

问题 怎么理解medium rare这个表达的语法

...这3种思路和我对各种思路所持有的疑惑写在如下：1.复合形容词，medium和rare都为形容词词性对于此种分析，我存在的疑惑是：如何写成medium-rare，那很好理解为复合形容词，但是如果没有连字符，写成medium rare的话，是否还可以...