各位老师好，我们练习册上有两道题目：1.Frank will return the book if he has finished reading it.2.The project will not start until all the
preparations have been made.请问这两个句子为什么填完成时，尤其不懂第一个，虽然书上说在条件句里现在完成时...
Adulthood
milestones include leaving home, attending college and starting employment, etc.机器翻译 adulthood
milestone 的结果是“成年里程碑”。机器翻译 Adulthood
milestones include leaving home, attending college and starting employment, etc. 结果是：成年里程碑包括离...
请教各位老师，下面这三个句子哪个是正确的？1. I am so happy
that I pass the exam. 2. I am so happy
that I have passed the exam. 3. I am so happy
that I passed the exam. 我很开心我通过了考试。
It is true that volunteering can help others，and it can also help you.这里的it是指volunteering can help others还是volunteerring can help others，and it can also help you.全部呢，为什么呢？
It might be argued that wealth, __inherited or earned, is not sufficient to give real powerA.either B.whether我想的是whether（wealth is） 答案是A说并列成分 其实感觉两个形容词作补语也行 不需要 加
...，但有时它的前面也可以用定冠词，这是为什么？如：
The children cut the paper into various simple shapes. 孩子们把纸剪成各种各样简单的形状。
The various dialects are quite distinct from one another. 各种方言之间存在着相当的差异。