1. I don't believe what he has just said. It is                 

A. reason                           B. unreasonable              C. reasonably                   D. reasoning

2. The teacher does everything in order to                  her students.

A. courage                         B. encourage                  C. encouragement            D. encouraged

3. What is his                 ? Is he American or English?

A. national                        B. nationality                 C. nationalize                   D. international

4. You should spend your free time                 .

A. useful                           B. useless                       C. usefully                       D. uselessly

5. Please decide what you want to do. You must make a                 

A. decide                          B. decision                     C. decisive                       D. decisively

6. He is interested in the                  of old buildings.

A. preserve                        B. preservation               C. preservative                 D. preserved

7. He has very high                  of his only son.

A. expect                           B. expectation                C. expected                     D. expectedly

8. All of us need the                  of fresh air.

A. provide                         B. provided                    C. provision                     D. provisions

9. Farmers need to                  crops.

A. rotation                         B. rotate                         C. rotational                     D. rotationally

10. We are discussing about a problem of great                  

A. important                      B. importance                 C. importantly                 D. import