我不熟悉那种编程语言。

I'm not familiar with that programming ___language.

学生必须至少掌握一种编程语言，最好是Visual C++。

Students must have knowledge of at least one programming ___language, preferably Visual C++.

Python是人工智能中广泛使用的编程语言。

Python is a widely used programming ___language for artificial intelligence.