1、 There is something wrong with the computer. It won't ______ today.

2、 We can not ______ his failure in the English examination.

3、 The central government has been working hard to keep China's economy ______.

4、 Some industries, such as construction and mining, have been ______.

5、 Failure to provide ______ explanations for his frequent blunders, this young man was fired.

6、 That one is the ______ piano on which the composer created some of his greatest works.

7、 My camera can be ______ to take pictures in cloudy or sunny conditions.

8、 William E. Boeing, founder of the company that designed the 747, had to ______ manufacturing bedroom furniture to survive some lean years.

9、 Dress warmly, ______ you'll catch a cold.

10、 They reported the loss and gave all the necessary ______ to police.