Sensible peopl don’t think it is_______ to buy things which are not needed even at a low price.

It is believed that high achievers are ambitious, hard working, and work toward personal standards of excellence _____ material rewards．

I have got used to staying up late at night I’m really tired and want to go to sleep early[ ]

Evidence has been found through years of study______ children’s early sleeping problem likely tocontinue when they grow up. [ ]

Police now believe that the crime could be ________ to the one which happened last week.