Advertising is the largest expense of most marketing plans, with public relations following in a close second and market research not falling far behind.with在这里表示什么意思,在句中做什么成份?
As of Wednesday morning, the United States, which is leading the world in terms of confirmed cases, has reported 189,510 infections, showed the tally updated by the university's Center for Systems Science and Engineering.
has reported 和showed 分别引导什么成分
Teachers in every discipline assigned books to their students and used paper to keep track of which student had which book.请问"which student had which book"是什么语法成分?
A bank is the place where they lend you an umbrella in fair weather and
ask for it back when it begins to rain.这里的先行词是the place,是一个单数, 为什么后面从句的主语就用they?
...osed to have done,而不能用is。我觉得很有道理,因为planned/intended/meant to have done sth.中的plan和could/should have done sth. 中的could都是过去时。所以 (一)我怀疑《柯林斯》hand in例句翻译的正确性: I'm supposed to have handed in ...