句子一：Floor tiles can be difficult to clean – worth keeping in mind when you choose a new floor. 句子二：That is worth bearing in mind as House committees pursue their own investigations.老师好，为什么keep bear两个及物动词前面加了worth就……不及物了？
She felt suitably humble just as she had when he had first taken a good look at her, hair waved and golden, nails red and pointed.1) as she had 中的had不懂，完整句子是什么呢？2) hair waved and golden, nails red and pointed 如何分析成分呢？
On the same day Biden introduced his health team, and detailed his plan
to fight the coronavirus when he takes offices in January.请教老师，这里的to fight the coronavirus 是his plan同位语，还是定语？我认为是同位语，可有同学说是定语。
When you revise a unit, first read it through. Then look at anything
you wrote in your vocabulary notebook connected with the unit这个句子中anything后有两个后置定语修饰，分别是you wrote in your
vocabulary notebook和connected with the unit 。这两个后置定语是表示并列...
...top, ___42___ some of
them looked very anxious and ___43___ (disappoint). When the bus finally
came, we all hurried on board. I got a place next ___44___ the window, so I had
a good view of the sidewalk. A boy on a bike ___45___ (catch) my attention. He
was riding beside the bus and waving his arms...
"Why, Dr. Watson, that's not you, is it? You are the last man that I should have expected to see out on the moor at this time of night. But, dear me, what's this? Somebody hurt? Not - don't tell me that it is our friend Sir Henry!" He hurried past me and stooped over the d...
老师好：请教一下。It's an interactive feature that lets visitors key in job criteria such as location, title, and salary, then E-mails them when a matching position is posted in the database.问题：这句话是否为强调句，为什么？
...文》第六版ought to词条有一例句：You were out enjoying yourself when you ought to have been studying.应该学习的时候你却在外玩。这里have been studying是否应改为be studying?因为主句为过去时，所以ought to也表过去，其后再接个完成进行时，则语意...
... the muscular body suits create the illusion
of a perfect body, especially when worn under a tight shirt.请教老师：上面这句话里的介词短语里面的realistic looking muscles和an
automatically-correct positioning怎么翻译？词汇looking的语法作用是什么？名词短语an
auto...
When a person begins a mediated or immediate encounter, he already stands in some kind of social relationship to the others concerned, and expects to stand in a given relationship to them after the particular encounter ends. This, of course, is one of the ways in which social contacts are gea...