From his _______ expression on his face, we know he is _______.

The ______ look on the manager’s face suggested that he _______ to overcome the difficulty.

 Whether the buildings in this area should be pulled down has remained ________; people are still looking for other possible solutions.

------ This is such an interesting book ______ everyone likes to read .------Yes , but there are few such books _______ in the bookstore now .

Most middle schools prefer to buy _______ desks, so they can change to suit students’ growing height.