John is the only one of the students in the class that never _______ a mistake even when it is pointed to him.

Are you satisfied with her answer? — Not at all. It couldn’t have been _____.

Chinese medicine has amazed many people around the world with its different________ to health.

ang gave all textbooks to all the pupils, except ____________ who had already taken them.

The railway station is noisy but ____________ in my eyes.