The rain comes from the clouds.(对the clouds提问） I can see a s

The rain comes from the clouds.(对the clouds提问）
Where does the rain come from
I can see a stream in the picture(对a stream提问
What can you see in the picture
He is still making popcorn(变成一般疑问句）
Is he still making popcorn
I'm going to the sky.(对the sky提问）
Where are you going
不明白的再问,多谢!