10. A. document                B. develop                     C. opponent                  D. astonish

9. A. dinosaur                    B. calendar                    C. eternal                      D. history

8. A. begin                         B. mountain                  C. kingdom                   D. passage

7. A. incredible                  B. humidity                   C. environment             D. definition

6. A. before                       B. arrive                        C. imply                        D. countless

5. A. appropriate               B. emotional                 C. pronounce                D. situation

4. A. simultaneous             B. feedback                   C. different                   D. errors

3. A. promise                     B. expensive                 C. constructive              D. original

2. A. forests                       B. singing                     C. concerning               D. burning

1. A. superman                  B. synthetic                   C. conversion                D. professor