1.I could have passed my examination easily but I made too many stupid mistakes. 本句中的have passed 是理解成省略了to的不定式的完成式么？2.情态动词有时态么？情态动词后跟的是动词原形，还是不带to的不定式？谢谢！
...ing forward to meeting her new kids and seeing her again. 请问这里的this has been a month for seeing old friends 指的是see old friends 这件事持续了一个月还是说这件事之后已经有了一个月？还有这里不是说他们全家来吗，为什么又是探望家人？
A report consistently brought back by visitors to the US is how friendly, courteous, and helpful most Americans were to them. To be fair, (this observation) is also frequently made of Canada and Canadians, and should best be considered (North America.)直译句中的 is made of 是何意？
And he does so by taking a first look at pressing philosophical problems of the day whose urgency is no longer so obvious to us as it was for his contemporaries, any more than is the urgency that he attaches to passing over from three millennia of philosophical misapprehension to a scientific system...
...ave still been adapting themselves to life at college.我想知道问题中的have still been adapting 为什么要改成are still adapting。现在完成进行时也可以表动作一直持续到现在并还可以继续下去啊，不明白，求助！！
...ave still been adapting themselves to life at college.我想知道问题中的have still been adapting 为什么要改成are still adapting。现在完成进行时也可以表动作一直持续到现在并还可以继续下去啊，不明白，求助！！
...l school
professors,George Engel.——《大学英语四级》这句话中的praise如不是动词，后面怎么可以接名词？补充说明：这句话中的 George Engel 是 one of her medical school professors 的同位语。原文：Instead, she remains positive, holding up for praise one ...