where does the strange sound Bob hears come from

where does the strange sound Bob hears come from the teacher asked bob where does he come from可以么 Where does the water come from where does the cloud come from 回答 Where does the water come from? where does the rain come from? Where does the cioud come from? where does the snow come from? Where does the river come from? Where does the snow come from?__________________________. 1.where does the rain come from? where does the rair come from?