1、 Ralph would not (concede) that the work of the detectives was likely to be in vain given the price offered.

2、 The government's attempt to (inhibit) the present speed of inflation is highly appreciated.

3、 To conserve energy, estate developers are encouraged to build houses that can (retain) heat in winter.

4、 To (suppress) this uprising completely seemed to be too difficult a mission to these officials.

5、 For them, defeating this football team is a mere dream that is neither (substantial) nor practical.

6、 The flowers on the table were a (manifestation) of the child's love for his mother.

7、 The restaurant's (patrons) enjoyed the food and atmosphere so much that they recommended it to their friends.

8、 Forests are (delicate) systems that, if disturbed, can be permanently destroyed.

9、 Most religions are concerned with the worship of one or several deities as well as with ethical rules of (conduct).

10、 The use of penicillin is limited by its tendency to (induce) allergic reactions.