A Bad Bad Day

This few day is a bad bad day for me, you know what, someone has stole my calculator and it is expensive you know. Last 2 days, that is Thursday, my class have a small test on science & math, after the biology test, I left my calculator on my table and forgot to keep, after the recess I can't find my calculator, that must be someone has stole it b'cuz I din't keep it. Another thing is that yesterday my tuition teacher told us that he will giv an extra for us on Wednesday, the bad thing is that on that day, my club will be having a fairwell party at Century Mahkota and the time is exactly the same, so how, which place should I go? Can anyone make a decision for me?!!!