76..I don’t think ____ possible to master a foreign language without much memory work.
You’d better have the second-hand car ______ before you sell it.
It remains________ whether Jim will be fit enough to play in the finals.
Professor Williams keeps telling his students that the future________ to the well-educated.
There is no doubt _______ my friend is not satisfied with what they have done.
We should learn from those _____ are always ready to help others.