What ____ an excellent player from an average one is that the former learns from his errors, while the latter repeats them.
A.defines B.describes C.differentiates D.discourages
We all have times of insecurity in life, _____ there is nothing to do but bravely face the feelings of doubt.
A.which B.when C.where D.that
Everyone wants to live on the top of the mountain, but growth occurs while you _____ it.
A.climbed B.have climbed C.are climbing D.have been climbing
He _____ you he was a qualified agent, but the truth is quite otherwise.
A.must tell B.could tell C.should have told D.might have told
Or students, preparing for Gaokao is a difficult but _____ challenge that will shape their future.
A.controversial B.arbitrary C.tentative D.worthwhile
All of us applauded the proposal _____ every cent should be used where it is needed most.
A.that B.what C.which D.whether
