1.A. beautiful                       B. worried                      C. pressure                        D. obedient

2.A. biologist                       B. actor                          C.  active                           D. teacher

3.A. supportive                    B. confident                   C. solution                         D. secure

4.A. mischievous                  B. whenever                   C. solution                         D. imagine

5.A. obedient                       B. biologist                     C. generally                       D. responsible

6.A. secret                            B. mature                       C. household                     D. access

7.A. possible                        B. important                   C. together                        D. familiar

8.A. category                       B. biology                      C. geography                     D. technology

9.A. degree                          B. diploma                     C. petition                         D. certificate

10.  A. nursery                      B. cinema                       C. primary                         D. statistics