Believe it or not, no bread eaten by us is so sweet as ___________ earned by our own labour. 

I wanted some more cold meat but there was _____ left.

Cook was a strict but good captain , _____ who , usually , took care of the sailors on his trip .

I think I had at least a billion tests, including _____ in which they cut out a piece of muscle from my leg and looked at it under a microscope.

Our city has changed a lot; who can tell what it will be like in ___ ten years?