问题 finish可以用于建房子或建桥梁吗

表示建房子和桥梁通常是要 complete 的，对不对？The bridge was supposed to have been completed by 1992.如果用 finish 呢？就算错吗？

问题 no more是副词吗（可以修饰名词吗）

Now childbirth is no more a risk.请问这里的no more是副词吗？这是不是修饰名词了呢?

问题 不及物despair可以引用一句话吗

The eu has been “irrelevant” in the Syrian conflict, despairs one European diplomat.老师好，这个不及物动词despair在这里是怎么用的？

问题 if条件句可以用过去式吗

It used to be that if you wanted to watch a movie, you'd have to watch it from your television.请问老师这句话对吗？

问题 As long as是否可以做副词词组

He live here as long as 15 years这里的as long as是否是副词词组？ 辛苦老师解答!

问题 US和USA(美国)可以用于名词前作定语吗

问题 US和USA(美国)可以受形容词的修饰吗

问题 regretted可以作形容词用吗

下面句子中的 regretted 是形容词吗？我在词典中没有查到类似的用法：Thus regretted and cautioned on all hands, he took leave of the hospitable household. 

问题 While是否可以引导定语从句

根据新牛津英汉双解大词典的While词条，While可作为关系副词引导定语从句，并给出了例句：the period while the animal remains alive可是查阅几本语法书都么有找到While的这个用法，老师们对while引导定语从句是如何看的。谢谢！

问题 while可以接短暂动词

He squared his shoulders, saluted, and held the book out toward the woman, although even while he spoke he felt the bitterness of his disappointment. ①spoke在这里不是短暂动词吗，为什么用while不用when？②前面的even是修饰后面的整个从句吗？

问题 独立主格中可以用to have done这种结构吗

问题 visitor 和tourist 的区别是什么(两者可以互换使用吗)

问题 not only ...but后边的be动词可以省略吗

问题 be pleased that可以改成be pleased because吗

Her parents were pleased that she had done so well. 请问这里的that she had done so well 是表示原因吧? 但为什么不用 because 呢?这句也可以这样说吗?Her parents were pleased because she had done so well.

问题 decision后面的同位语从句可以省略that吗

(1) The decision (that) whether or not to salvage the wreck was not an easy one, although an excavation in 1978 had shown that it might be possible to raise the hull.(2) The hope that he may recover is faint.请问：是否可以认为 decision 后面省略了that？是同位语从句吗？