he can pass the entrance examination is quite uncertain.
—How is your father?—He’s fine. He’s______ to play tennis every Sunday.
The doctor assured the patient that there was ______ with her, but she could not help worrying.
The child dreamed that he had once lived in a _______ house in the forest.
The children all looked _____ at the broken model plane and felt quite _____.
“This book is ______ more useful for us students.” “Yes, but it is _______ too difficult.”