English diary(please help me correct it)

This is Simple again! Today we have only two classes, but I still have so many things to deal with. There is a oratorial contest in our department. Because I'm the commissary in charge of organization, I need to propagate it to my classmates and attract them to join this activity.
In the afternoon our monitor arranged a class committee meeting. We discussed something concerning class affairs and specified the duty of each member. Just after the meeting I had to hand in the name list to my teacher.So I'm really busy these days.

The last two class was "writing lesson". Our writing lesson teacher is a middle-aged tall man . He is from headquarters. In his class we need to write down a lot of things. It is necessary for us to review after class. He often emphasizes the importance of 'persistence' in English learning especially in English writing and he said we should attach priority to diligence over intelligence. 

I had to write for four minutes so just stop here! (I am not sure of this sentence. May be it should be, "I wrote for four minutes")

  = corrections

  =  remove those

How was your English exam? All the best for the oratorial contest. Win it!