The best way to explore _______ countryside is on _______foot.
What the doctors really doubt is________ my mother will recover from the serious illness soon.
Her question was so difficult that I could hardly make any ____ of it at all.
Despite the fact that Lucy is a lovely girl, she _____ be extremely difficult to work with sometimes.
Fitness is important in sports but of at least _____ importance are skills.
You’ve missed your ______ to speak and you have to wait for another round.