...认为，know后不可直接接动词不定式形式，但可接how [who, where, when, whether, etc.] to do形式。如：She knows how to drive. 她懂得怎样驾驶(汽车)。He knew how to express his thoughts.
他知道怎样表达自己的思想。I know where to go. 我会认路。通常不...
He laughed at my third-grade photo, the one where my hair had been expanded to new dimensions by an especially cold and windy day. 老师，这里的the one这一整句话是作为photo的同位语吗？ the one 后面是一个定语，然后没有其他成份了。
It is strange that the boy should have said that to his mother. 真奇怪，这男孩竟会对他母亲说出这样的话来。这里的 It is strange that…中的主语从句用的虚拟语气，这是必须的吗？可以不用虚拟语气吗？或者说：不用虚拟语气算错吗？
I've gotten to the point where I can be around some difficult people without feeling the need to be so reactive fix them to make them happier or want to avoid them.请问此处的so reactive fix them是否应为so reactive to fix them？为何能够省略to？或者是与so相关其他结构？
...eads off Station
Square. not far from the public gardens.Fairly close to where refreshments are available, there's a dog-walking
area in the southern part of the park, leading off from the path.想问下这里lead off是固定搭配吗还是lead是动词，off是副词？off的用法是？
If he spends most of his time playing about in the way that he used to
as a child, he will go hungry. 请问老师if条件状语从句中，playing about in the way that he used to as a child结构怎么分析，谢谢老师。