1. a. His witness is hardly credulous. b. It turns to be a creditable affair, doesn't it? c. Credulous people are easily led astray.
2. a. They were denied admittance to the concert. b. She applied for admission to the university.
3. a. The observation of a patient's condition is essential for a doctor. b. Is the observance of religious holidays of great importance in this country?
4. a. A sigh is an expression of sadness or sorrow. b. There was little expressiveness in her speech.
5. a. No one could explain the occurrence of this scandalous matter on the late news. b. In the event that they come, tell them to wait for me. c. Her absence from school was an unpleasant incident for her parents.
