# 1OXThere are 3 parts of excretory story. Please finish the first part in the hints. A VDO is in the hints.คำใบ้https://youtu.be/azkipo5mm9o
# 2OXThere is a second part of excretory story. A VDO is in the hints. Please finish the first part in the hints.คำใบ้https://youtu.be/FxGPObMqUqY
# 3OXGood job... this is the last part for excretory story. Please look at a VDO in the hints.คำใบ้https://youtu.be/oVLs06KWf1Q