By the middle of the 20th century scientists believed they were well on the way to treating, preventing, or eradicating many of the deadly infectious diseases that had plagued humankind for centuries.为什么句中用了 that 没有用 those 呢，指代的不是复数吗？
...goes that she went home with him that night...
问题一：请问句子里的go是vt 还是vi？三个句子哪个句子有语法问题？
问题二：As a report puts it:" The impacts may be even greater."这个句子我觉得去掉it也可以，因为as可以作put的宾语，而人们采用第...
And the three of them walked off in a whispery little group. It was the yuckiest feeling in the world.in a whispery little group是什么意思？yuckiest是形容词的最高级吗？in the world 是什么意思？
Twenty-five years later I find the living trace of my thoughts, my ____ of that time.A. sensibility B. sentiment C. sense D. sensitivity请各位老师帮忙解答，我的理解是选B，参考答案是A。
请问老师，depend on sb to do 和depend on sb doing的区别是什么？比如这句话中 We decided to depend on him to carry out the secret order. 可以换成 depend on him carrying out the secret order吗？
Setting goals is the first step in
achieving them.这是高中英语新教材译林版必修1第1单元的两个句子(p7)。不是说 the first…后面要接不定式作定语吗？为什么这里用 in achieving them?能不能改为 to achieve them 啊？
However, in recent decades, cities began cleaning up rivers. The Thames is now the cleanest it has been in 150 years and has seals and the occasional whale, sometimes alive.省略掉的关系代词that怎么指代了形容词呢？这又不是非限制性关系分句。
For a great book is necessarily a gift: it offers you a life you have
not time to live yourself, and it takes you into a world you have not time to
travel in literal time.请问老师for在这里的含义和语法结构是什么？have not time为什么不是have no time?谢谢老师！
So Scar did away with both
of them, killing Mufasa and banishing Simba, and, as a result, he got to be king
for a descent amount of time.
这句里面 a descent amount of time 是什么意思呢？怎么理解 descent 在句子中的意思。