Alfonso: I got 20 out of 24 questions from today's test!
Alfonso: Thank you so much, teacher!!
Ethan: Great! 
Alfonso: I will finish common logarithms part before you come!
Ethan: Matrix would be better. See you on friday!
Alfonso answered correctly on 20 out of 24 questions from today's test. Ethan is pleased with this and advises Alfonso to focus on matrix rather than ordinary logarithms. Alfonso and Ethan will meet on Friday.