Fortunately, the illness is fully treatable if _____ within ten days.
After dinner he gave Mr Richard ______ ride to ______ Great Wall.
______ I admit that all these problems are difficult, I don’t agree that they can’t be solved.
Clothing made of man-made fibers has certain advantages over _______ made of natural fibers like cotton, wool or silk.
Believe it or not, I am sure that is _______ people call the sixth sense.
One’s being _______ plays an important role in building up interpersonal relations, while some rudeness will surely leave a bad impression.