It isn't so much whether he works hard; the question is whether he works _____.
You may have no idea _____ you will be doing ten years from now.
_______________, we don’t have much spare time at the moment.
It is the education _____ he received when studying abroad _____ has made him such an excellent manager.
--Mum, I’m going to visit my uncle. What about staying there a week?--A week is too long. Try to be back in a _____ of days.
He was driving a lorry load of bananas ____he came off the road at a bend and fell into the valley.