英语新概念课本第二册的77课A successful operation里中有这样一句话：They also found something which X-ray did not show: a small wax figure of the god Duamutef. 请问，先行词是something, 为什么定语从句的关系代词不是that, 而是which？
Looking westward across the great continent toward sunset, I knew that I had better get up and go back to the lavatory. Which I did.请教老师，最后的Which I did，这里的did是不是表示强调的助动词， 而whcih指的是“get up and go back to the lavatory”, 即Which I did = I did...
"Do you think it's likely that a man will do any good when he starts at your age? Most men begin painting at eighteen.""I can learn quicker than I could when I was eighteen."为什么书上和网上都将"I can learn quicker than I could when I was eighteen."翻译为：要是我十八岁就开始...
...较常见的是 different。如：This dictionary is little different to that one. 这本词典与那本词典没什么不同。我还查到一个little short of（几乎）的习语：Our escape was little short of miraculous. 我们能够逃出来简直是奇迹。我的问题是：除上面的用...
...sposable-meant to last only a wash or two, although they don’t
advertise that –and to renew their wardrobe every few weeks.
这里的 see clothes as disposable，其中的as和disposable分别是什么词性？以及see...as中的as是什么词性？
A film review is a report that expresses an opinion about a film.Is your opinion of the film supported by enough evidence?这是高中英语新教材译林版必修2第1单元的句子(p10)。看到过opinion后面接介词on, about, of，请问它们有区别吗？
Instead, it seems to be redirecting aggression in a threat display and Ottawa is the unlucky object getting thrashed.
请问redirecting在这里做什么成分？是现在分词吗？修饰谁？
CNN 《Company Uses Drones In
Reforestation》There's multiple drones operating to perform a task simultaneously.这里的operating怎么理解？其后的to perform是作名词定语，还是表目的呢？
看到这样一个句子：His fingerprints and photograph were sent around the world, including
to England, America, and English-speaking countries in Africa. 请问句中的to可否省略？
Many of the reductions over the past 30 years have been achieved either
by reducing the amount of sugar, salt or fat in a product, or by finding
an alternative ingredient.这个句子have been achieved是什么时态