School Joke: Good Result

[yetadem]

TEACHER: Akpos, you've a good result; B2 in English, A1 in Biology, B3 in Agric, B2 in Economics, A1 in Maths, B3 in Commerce.

AKPOS: Thank you sir.

TEACHER: But Akpos, why did you've F9 in Geography?

AKPOS: There were a lot of invigilators that day, so I couldn't open the 'expo' paper.