If the air you’re breathing is clean-which it would
be if you’re away from the smog of cities-then the air is filled with
life-giving，energizing oxygen. which 引导的句子是什么成分？感觉像非限定定语从句，但是
it would be if ....句子应该是不缺成分。
...oints are quite large, up to twice as large as regular points, so big that you couldn’t attach one to a spear say, and expect to throw the spear accurately over any distance.（point指的是矛尖）请问老师：句中句末的say如何理解，up to...是非限制性定语吗，其中up算是...
would rather 虚拟语气：would rather (that) sb did/had done.有没有非虚拟语气的用法？另外，既然有 sb would rather do （than do）的用法，有没有 I would rather sb do than do的用法呢？我好像读到过这种结构的句子。
...为现在进行时还是一般时？例如，原句：If traveling north,you must change at Leeds. 还原：If you are traveling north, you must change at Leeds. If you travel north, you must change at Leeds.
If
you say that something such as an item of ______ is in the wash, you mean that
it is being washed, is waiting to be washed, or has just been washed and should
therefore not be worn or used. A.
clothing B. clothes
Advertising has everything todo with images, dreams and emotions; stuff we are programmed to engage with but which is, almost without ecxcepion in the ad biz, fake.
这个句子分号后只有一个名词规范吗？或者说省略了（They are）还有它的定语从句结构是省略了第一...
牛津高阶英汉双解词典第9版中，convention的释义为 the way in which sth is done that most people in a society expect and consider to be polite or the right way todo it。这里该怎么划分成分。谢谢老师！
Just remember
that it is completely normal to struggle with the stress that parent- child
tensions create, and that you and your parents can work together to improve
your relationship.这是高中英语新教材译林版必修1第2单元的句子(p17)。
请问加粗的that是什么用法？
《A Flower For
Your Window》by Leigh Hunt美国语文教材改编版：The
other day we were in a garden where Indian corn was growing, and some of the ears were plucked to show us. First, one leaf
or sheath was picked off, then another, a third, a fourth, and so on, as if a fruit
seller were unpa...