There are _____ pens ______pencils in the box.A not, and B no, and C no, or1）not否定的是动词，那么pens和pencils是并列的，A选项是否可以？2）B、C选项区别在于用or还是and。这个答案应该选哪个？其他两个选项错在哪里？
It was first believed that he got lost in a storm and had died in the cold weather.
看过老师们的相关解答，and前后两个动词时态可以不一致，只要复合逻辑。
这里got lost 和had died是不是时态错了?应该是先迷失lost，然后死掉die，那不是应该had lost...
...nts ____.have made diagnosing certain diseases much easierhas made it much more easier to diagnose certain diseaseshas made certain diseases much easier to diagnosemake diagnosing certain diseases much easierare making it much easier to diagnose certain diseases
The table set,we can have dinner now.Everything taken into condiersation,his plan seem to be more efficient.如加粗的部分,如果要体现出 had been done,在独立主格中该怎么写? 只省略掉been吗? had set / had taken?
more than 100,000 inhabitants distributed over 112 historic settlements scattered over the site.请问distributed over 112 historic settlements是做谓语和宾语成分呢，还是做inhabitants的后置定语？ scattered over the site是做settlements的后置定语吗？
A century is, geologically speaking, a very short period of time. And so is a thousand years.上句中的And so is ...中so 是什么用法和含义? And so is a thousand years 主语省略了吗？so表示强调吗？
Most of the patients are elderly people with chronic articular diseases, like arthritis and ocular problems in particular. 大多数患者是患有慢性关节疾病的老年人，特别是关节炎和眼部问题。请问这句话里面and是并列的哪两个成分？
...dent Assessment (PISA), a triennial test of 15-year-olds around the world, and the Trends in International Mathematics and Science Study, which measures ten- and 14-year-olds.ten- and 14-year-olds.是"10-14岁的孩子"还是"10和14岁的孩子"？谢谢老师。