He had thousands of students, many of ______ gained great success in their own field.
26. The company _______ a rise in salary for ages but nothing has happened yet.
25. The concert__ to _ some money for those suffering from the earthquake, which __ 2,000 lives.
24.Last Monday,while the students on the playground watching the national flag being raised,something unexpected .
23.Today,we take washing machines for granted,but there was before 1869.
22. Everyone present at the meeting agreed to stick to the ________that everyone should be treated fairly.