At the beginning of class，the noise of desks being
opened and closed could be heard outside the classroom请问 the noise of desks being opened and closed could be
heard outside 中 being opened and closed是分词还是动名词？句子出自高中英语课文（人教社），课本解释：the...
... remained unsubdued of his heart, trusting
that it was not more than might be won in the course of the evening.请教老师：it was not
more than might be won 这个没看懂，怎么分析，是什么意思呢？谢谢！
...uld have envied them less. I didn't see, then, what a prison a house could be, since houses seemed to me brighter, handsomer places than any factory.上述句子中的“what a prison a house could be”是什么语法知识呢？我初步判断是【省略it is的感叹句作表语，且表语前...
...lost？我是说在在介词后面直接用过去分词？可以换成 for being lost 吗？The next morning I’d just about given myself up for lost when I was spotted by a ship.句子来源：人教版高中英语必修三Unit 3THE MILLION POUND BANK NOTE百万英镑
With so many companies competing for consumers' attention, price competition was intense and profit margins thin or nonexistent.profit margins 后面是否省略了were？
In fact, research suggests that potatoes are preferable to pasta in terms of their ability to reduce appetite after being consumed.上文中的绿色部分是介词加动名词结构，还是一个after引导的时间状语从句省略后的形式？谢谢老师的回答。
下面的翻译对吗？尤其是be so represented in their
sculpture 的翻译对吗？To the Greeks, Pan was a herdsman god, halfman, halfgoat; and he is so
represented in their sculpture. 在希腊人看来，潘是牧民神，一半像人一半像羊，因此他出现在了他们的雕塑中。