1. 然而，他们可能不是什么都懂。
    However, they may ____ be able to understand ____.
2. 当不同文化互相沟通时，所有的语言都会发生变化。
    All languages ____ when cultures communicate ____ one another.
3. 实际上，当时的英语更多地是以德语为基础的，而现代英语不是。
    ____, the English then was ____ more on German than present-day English.
4. 对于一个中国人来说把英语说得跟以英语为母语的人一样好是不容易的。
    ____ is not easy for a Chinese to speak English as well as a ____ English speaker.