n’t know whether I should go abroad or not, Mum.— I leave ______ to your own judgment whether you should do it.

____________ late, but also he forgot his books. [ ]

It is uncertain____side effect the medicine will bring about，although about two thousand patients have taken it.

To win in these areas, the firm needs a sustainable __________ advantage.

Classical music has _____ lasting value while folk has _____strong local colour.