To this day, no clues have been found as to what happened to this wealthy American businessman who is credited with single-handedly reviving the Thai silk industry.这里的as to 怎么分析呢？
Minor cuts and grazes can usually be left uncovered to heal by themselves.Yellen is not one to buy into the finance industry’s argument that it should left alone to regulate itself.请问老师，这两句中to后到内容作什么成分？
The technology for methylation of
toluene with methanol to produce xylenes uses S-series toluene methylation
catalysts and has the following technical characteristics.这个句子中的to produce用法对吗？是不是The technology for methylation of toluene with
methanol to produce xylenes整体...
... cracked a little. "What's the matter, anyhow? If we're going totown, let's start."His hand, trembling with his effort at self-control, bore to his lips the last of his glass of ale.“走呀！”他有点儿动怒，“到底怎么回事？要进城的话，那就走呀。...
Right before spring comes around, the honey bee colony returns to producing summer worker bees.就在春天来临之前，，蜂群又开始繁殖夏季工蜂。困惑：上句中 returns to producing - to是介词，表达了什么意思？可否用不定式，即returns to produce...?上句中，t...
...ds from Auburn, N. Y.—Dorothy
Woodruff and Rosamond Underwood—traveled to a settlement in the Rocky Mountains
to teach in a one-room schoolhouse. The
girls had gone to Smith College. They wore expensive clothes. So for them
to move to Elkhead, Colo. to instruct the children whose shoes were held...
口语中的以下表达是如何区分的？Nice to meet you. Nice meeting you.Peased / Glad / Happy to meet you.Peased / Glad / Happy meeting you.另外，下面的句子用现在时和过去时有区别吗？It is nice to meet you. / It was nice to meet you.I’m pleased to meet you. / I was plea...
The study showed a deep fear among the elderly of being abandoned to
the care of strangers.
请问这个句子里面，to the care of strangers是做介宾being abandoned的补语,还是做过去分词abandoned的状语？
1.Researchers did
a survey of more than 1,000 parents with kids ages 2 to 8.2.Researchers did
a survey of more than 1,000 parents with kids aged 2 to 8.第一句话出自一道阅读理解题，学生不理解ages的用法和整个句子的结构；第二句话的aged应该是形容词“...岁”...
The respectability of the party was portentous. The women were too nice to be well dressed, and too sure of their position to be amusing. The men were solid. There was about all of them an air of well-satisfied prosperity.这里出现的too nice to...too sure of...to...是太...不能... 还是 太....