Recent studies have discovered that fathers uniquely contribute to the development of their children, _____ in low income families.

(2013·福建，31)Those poor and needy teenagers were excited to find a shop at the corner where they could buy ________ priced bikes.

   They traveled ________, all the way up to Wisconsin .

It　　 that Jane and Mary will be late.They　　to miss the party.

I have $50, but that isn’t ____ enough for my journey fare.