Put the guestions to the sentences below

What did ann see when she came a new school What is a source of our wealth Which water is always drinkable What people couldn’t do exercises on physics What does help student to get  better results When was done  a lot of harm to the forest by the fire Which building did set on fire /who knows who set on fire new building What is always important for you Why did he raise his right hand What is the environment What was polled  with smoke from the chemical mill