然而，由于很短的时间内实施普通话学习活动的困难，老师很难控制好课堂。

然而，由于很短的时间内实施普通话学习活动的困难，老师很难控制好课堂。

Hasil (Inggris) 1:

However, due to the very short period of time to implement Putonghua learning difficulties, the teacher is hard to control the class.

Hasil (Inggris) 2:

However, due to difficulties in learning Putonghua implementation of activities within a very short period of time, it is difficult to control the classroom teacher.

Hasil (Inggris) 3:

However, due to the difficulties in implementing the Mandarin learning activities in a very short time, it is difficult for the teacher to control the classroom.