----Where is Jack? ----On the playground. He _______ football with his classmates.
We have to work for ________ to finish the work.
The sea water is _______ for anybody to ______.
The plane couldn’t take off on time _____ the heavy rain.
I found ____ hard to get out of bed on cold winter mornings.
--_____ do you feel _____ Sanya? –It’s beautiful and warm.