5. A. sufficient                   B. deficient                   C. ancient                      D. efficient

4. A. conscious                  B. speedometer             C. thermometer             D. parameter

3. A. ancient                      B. edible                       C. visual                        D. delicious

2. A. photography             B. qualification             C. occasion                   D. Canadian

1. A. definition                  B. production                C. situation                   D. politician

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