The use of English in the classroom. There are both advantages and disadvantages. It depends on many factors and the most important is that you know it applied to benefit, thuk.
Use only English in the classroom. There are both advantages and disadvantages to each. Depending on many factors and it is important that you know it applied to themes and benefits.
The use of English only in class. There are both advantages and disadvantages differ. Depends on several factors, and the most important is that you know the IT application give it's need and benefits.