Recycling is one way to protect the environment; reusing is ______.
It was not until 1945, ___ the Second World War came to an end, ____ people began to realize the eventual coming of peace.
I’ m tired out. I ______ all afternoon and I don’t seem to have finished anything.
Carol said the work would be done by Octorber, ____ personally I doubt very much.
____ one can achieve largely depend on ____ hard he works every day.
—How did you like Nick’s performance last night? —To be honest, his singing didn’t ____ to me much